Re: [nfc-l] Buzz call over western Pennsylvania
Geoff et al, To my ear, this sounds like the buzzy variation of Rose-breasted Grosbeak that is often given in fall (perhaps by immatures?). It has more of a liquid quality, and maybe a bit more of a rising inflection than is typical of Dickcissel. There are good examples of this call on the Evans & O'Brien CD-Rom. Good listening, Michael O'Brien Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com > On Sep 22, 2014, at 12:10 AM, "Geoff Malosh" wrote: > > Hi all, > > I heard the attached buzz-type call on the morning of Sept 19 during the very > large flight over the Pittsburgh suburbs I posted about a few days ago. My > first thought was Dickcissel when I heard in real time it but a few people > have commented that it doesn’t sound exactly right in the attached recording, > which is true. Northern Rough-winged Swallow was the other immediate thought > . . . any other possibilities? > > The call in question is at 2.6 seconds into the clip. The same or a different > bird sounds like it calls a few tenths of a second before that. Thanks for > any comments. > > Geoff Malosh > Pittsburgh, Pennsylvania > > > Geoff Malosh | Editor, Pennsylvania Birds > 450 Amherst Avenue | Moon Township, PA 15108-2654 | 412.735.3128 > pomar...@earthlink.net | http://home.earthlink.net/~pomarine/index.html > === > Pennsylvania Birds is published by the Pennsylvania Society for Ornithology > Preview the latest issue: http://www.pabirds.org/pabirds/pb_sample.html > Subscription information: http://www.pabirds.org/PSOJoin.htm > > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] help with a mystery call from a few years back
Andy, I think you may have been on the right track with shorebird. It reminds me of an interaction or chase call of a small Calidris sandpiper (presumably Semi/Least in your area). Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com On Feb 22, 2013, at 6:48 PM, Andy Martin wrote: > Every once in a while I go back through my mystery call file to see if (with > a little more experience gained), I can ID one or two more. > > The attached call has bugged me for some time. Sounds a bit finchy to me, but > time of night (12:30 AM) doesn't coincide with predawn movement. Only finch > possibility left around my house in May would most likely be House (outside > chance at a Purple). House sparrow possibly? First time I heard it, cadence > struck me as shorebird, but I have never been able to match it to a > particular species. I am stumped. > > Thanks for any help. > > Andy Martin > Gaithersburg, MD > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Call ID?
Hi Will, The relatively low pitch and rough quality sound just fine for Gray-cheeked. This is a good illustration of how some Gray-cheek calls can be less arched than "typical". best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Wil Hershberger" To: "Nocturnal Flight Call Listserv" Sent: Friday, October 12, 2012 4:17:29 PM Subject: [nfc-l] Call ID? There were very few calls last night here. The only really clear call that was recorded is attached. Is this Bicknell's or Gray-cheeked thrush? -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- Wil Hershberger Nature Images and Sounds, LLC Hedgesville, WV The Songs of Insects My Blog -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] head-scratcher
Benjamin et al., This one also sounds fine for Barn Owl in terms of tone, pattern, etc., and not right for Great Horned. But odd to hear it doubled like that. They usually give single, well spaced notes. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Benjamin Van Doren" To: "Michael O'Brien" Cc: "Ethan Duke" , "NFC-L" Sent: Tuesday, October 2, 2012 11:42:15 AM Subject: Re: [nfc-l] head-scratcher Hi Ethan, All, I recorded this possible Barn Owl on May 1 of last year. No Barn Owls occur in the area in which it was recorded (so presumably a migrant), but it does sound very good for this species in my opinion and definitely has a similar rising inflection. Great Horned is also a possibility and nests nearby but I think Barn fits this call better (more of a "white noise" feel and hissing quality). Thoughts welcome on this one. Benjamin Van Doren Ithaca, NY On Tue, Oct 2, 2012 at 11:27 AM, Michael O'Brien < tsw...@comcast.net > wrote: Ethan, This sounds fine for Barn Owl to me. Their call frequently has a slightly rising inflection, as this one does. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com From: "Ethan Duke" < ethan.d...@mrbo.org > To: "NFC-L" < nf...@list.cornell.edu > Sent: Monday, October 1, 2012 7:27:30 PM Subject: [nfc-l] head-scratcher Greetings, Ever reluctant to post unknowns, but one is really odd Recorded at 02:07 hrs last night (30 Sept - 1 Oct). Any ideas? Ethan Ethan C. Duke, Assistant Director Missouri River Bird Observatory website: www.mrbo.org blog: http://mrbohappenings.blogspot.com/ facebook: www.facebook.com/pages/Missouri-River-Bird-Observatory 660.886.8788 -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- [image/gif:sigimg1.gif] -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] head-scratcher
Ethan, This sounds fine for Barn Owl to me. Their call frequently has a slightly rising inflection, as this one does. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Ethan Duke" To: "NFC-L" Sent: Monday, October 1, 2012 7:27:30 PM Subject: [nfc-l] head-scratcher Greetings, Ever reluctant to post unknowns, but one is really odd Recorded at 02:07 hrs last night (30 Sept - 1 Oct). Any ideas? Ethan Ethan C. Duke, Assistant Director Missouri River Bird Observatory website: www.mrbo.org blog: http://mrbohappenings.blogspot.com/ facebook: www.facebook.com/pages/Missouri-River-Bird-Observatory 660.886.8788 -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- [image/gif:sigimg1.gif] -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] migrating cuckoos
Ken, You may have been hearing a push of migrants, but I wonder if these birds could have been moving around locally. I've quite often heard cuckoos, particularly Black-billed, give nocturnal flight calls in midsummer (June and July) and I suspect these are birds moving locally. It's hard to know of course, but even in May I often feel like some of the cuckoos I hear overhead are locals. One big day trick for getting Black-billed Cuckoo at night is to listen in good breeding habitat. Whether that works because they are locals or because migrants call more often over good habitat I don't know, but it does seem to work. It would be interesting to do some summer monitoring to see what patterns emerge. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Kenneth Victor Rosenberg" To: "CAYUGABIRDS-L" Cc: "NFC-L" Sent: Wednesday, June 6, 2012 11:10:30 PM Subject: [nfc-l] migrating cuckoos I was surprised to step out in my driveway (Ithaca NY) this evening and hear 4 BLACK-BILLED CUCKOOS in 15 minutes (3 in the first 5 minutes). Maybe caught the tail end of a migration burst, but at least some mysterious migrants are continuing to move at night. KEN Ken Rosenberg Conservation Science Program Cornell Lab of Ornithology 607-254-2412 607-342-4594 (cell) k...@cornell.edu -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Unknown Hunterdon NJ Night Flight Call
Rob, This sounds like a good match for Virginia Rail to me. Best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com On Apr 21, 2012, at 5:19 PM, Rob Fergus wrote: > Here's a call I got a couple nights ago. Got another one last night. Would > love input on this one. It sort of looks like SWTH spectograms, but doesn't > sound like it at all. Ends with a nice burriness. > > Rob Fergus > Union Township, Hunterdon Co, NJ > http://birdchaser.blogspot.com > > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] First night flight of 2012?
Andrew, It should not be a big surprise to hear a single nocturnal migrant Killdeer at this time of year in Pennsylvania. Spring migrants begin moving in February, and "fall" migrants will sometimes move any time in winter if they get pushed out of northern areas by cold weather or snow. This has been a mild winter, so there were likely more Killdeers lingering at northern latitudes than usual. Still, it's really cool to hear a nocturnal migrant in mid-winter, and great to document it! best wishes, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Andrew Albright" To: "nfc-l" Sent: Tuesday, February 7, 2012 10:13:54 PM Subject: [nfc-l] First night flight of 2012? I just got back from running (more than 3 hours after nightfall) and I heard a Killdeer fly overhead! I'm in southeastern PA and this is very rare bird in the winter for this county. Sodoes this count as a night flight? What in the world is this bird doing? -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Hermit Thrush flight calls on ground
Interesting Mike. Yes, I've also heard Swainson's and Veery give quite a variety of strongly modulated calls, including a few that seemed to fall under the context of contact call/flight call. Can't remember hearing that from Hermit, but it wouldn't surprise me if all Catharus occasionally give analogous calls. I'll have to listen for that! thanks, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Michael Lanzone" To: "Michael O'Brien" Cc: "Jeff Wells" , "Nocturnal Flight Call ListServe" Sent: Wednesday, October 12, 2011 4:35:27 PM Subject: Re: [nfc-l] Hermit Thrush flight calls on ground I have heard Hermit Thrush give a call like that, interestingly I have also heard Gray-cheeked, Swainsons, and Veery give an alternate "flight" call note. These notes sounds a bit harsher and blurry or jumbled in quality, if that makes sense. At least Swainson's and Gray-cheeked have more than one call variation like this. I first heard these calls while I had them in the hand while I was recording flight calls in captivity at Powdermill (Auk 126-3: 511-519). I could never get them to make the calls while in the cone for a recording, always while I had them in the hand transferring them to the cone. Swainson's calls almost sounds like a "grrring" sound added to the calls and a bit shorter. Ethan, what you posted sounds very much like what I have heard form Veerys. Bill Cohran has recorded the other call I have heard from Swainson's I think, he told me he had one when I described the call to him. I have since heard all these calls at night, without having hearing them beforehand I would not have know what they were, although I have since heard calls similar to a few of these on the breeding grounds, so I bet they would be in the Macaulay Library if someone had the time to look there! Michael Lanzone mlanz...@gmail.com On Wed, Oct 12, 2011 at 3:56 PM, Michael O'Brien < tsw...@comcast.net > wrote: Alll, This has been a fun thread spun off Jeff's original post. But I have to say, what really caught my attention from listening to his video clip was that second call note which has a distinctly burry quality. To my ear, it sounds very similar to a Rose-breasted Grosbeak. I don't recall ever hearing a Hermit Thrush give a call like that. Has anyone else? thanks, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com From: "Jeff Wells" < jwe...@intlboreal.org > To: "Nocturnal Flight Call ListServe" < nfc-l@cornell.edu > Sent: Tuesday, October 11, 2011 5:09:41 PM Subject: [nfc-l] Hermit Thrush flight calls on ground Yesterday morning I was out in my suburban yard in south-central Maine watching a nice morning flight of birds moving over and through when I began hearing the “chuck” call of a Hermit Thrush from the neighbor’s backyard. Soon it began alternating between the “chuck” call and the drawn-out “whee” nocturnal flight call. I went inside to get my camera to record it (my recording gear was packed away) and by then it had flown up across the street into the top of a tree. At that point it began just doing the flight call with no more of the “chuck” call and then it moved to another taller tree 100 yards away where it stayed and continued doing the call for a bit before suddenly stopping. It may have flown away or it may have just stopped calling and dropped down somewhere nearby but I never saw or heard it again. I was able to get some of the calls on some video clips, one of which I posted up on my YouTube channel for anyone interested. I think I have some recordings of Hermit Thrushes interspersing the nocturnal call into songs during the breeding season and I know I have a recording of a Swainson’s Thrush doing that. Anyway, you can hear the calls on the video titled “Hermit Thrush giving nocturnal flight call” at: http://www.youtube.com/birdconservation Interestingly, the second call it gives on the video is much burrier than what I think of as normal and some of the calls seem a bit shorter than what I am used to hearing at night. Jeff Wells Gardiner, Maine -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds
Re: [nfc-l] Hermit Thrush flight calls on ground
Alll, This has been a fun thread spun off Jeff's original post. But I have to say, what really caught my attention from listening to his video clip was that second call note which has a distinctly burry quality. To my ear, it sounds very similar to a Rose-breasted Grosbeak. I don't recall ever hearing a Hermit Thrush give a call like that. Has anyone else? thanks, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Jeff Wells" To: "Nocturnal Flight Call ListServe" Sent: Tuesday, October 11, 2011 5:09:41 PM Subject: [nfc-l] Hermit Thrush flight calls on ground Yesterday morning I was out in my suburban yard in south-central Maine watching a nice morning flight of birds moving over and through when I began hearing the “chuck” call of a Hermit Thrush from the neighbor’s backyard. Soon it began alternating between the “chuck” call and the drawn-out “whee” nocturnal flight call. I went inside to get my camera to record it (my recording gear was packed away) and by then it had flown up across the street into the top of a tree. At that point it began just doing the flight call with no more of the “chuck” call and then it moved to another taller tree 100 yards away where it stayed and continued doing the call for a bit before suddenly stopping. It may have flown away or it may have just stopped calling and dropped down somewhere nearby but I never saw or heard it again. I was able to get some of the calls on some video clips, one of which I posted up on my YouTube channel for anyone interested. I think I have some recordings of Hermit Thrushes interspersing the nocturnal call into songs during the breeding season and I know I have a recording of a Swainson’s Thrush doing that. Anyway, you can hear the calls on the video titled “Hermit Thrush giving nocturnal flight call” at: http://www.youtube.com/birdconservation Interestingly, the second call it gives on the video is much burrier than what I think of as normal and some of the calls seem a bit shorter than what I am used to hearing at night. Jeff Wells Gardiner, Maine -- NFC-L List Info: Welcome and Basics Rules and Information Subscribe, Configuration and Leave Archives: The Mail Archive Surfbirds BirdingOnThe.Net Please submit your observations to eBird ! -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] American Bittern NFC
Andrew, et al, I concur that the single call note is typical in nocturnal migration. I have probably heard hundreds of single call notes from nocturnal migrants in Cape May, but the only time I recall hearing multiple-note vocalizations as in Bill's cut is when a bird was flushed from a marsh. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Andrew Farnsworth" To: c...@cornell.edu Cc: NFC-L@cornell.edu, "Bill Evans" Sent: Thursday, October 6, 2011 1:38:26 PM Subject: Re: [nfc-l] American Bittern NFC Hi all, I've certainly heard American Bittern produce isolated notes more often than not when I've heard them migrating at night, both in the field and in the lab from recordings; I'd hazard a guess to say that the single note call is more likely to be encountered . . . but this is really pure speculation, when it comes down to it, because I've not heard a tremendous number of bitterns in flight at night! Best, Andrew On Thu, Oct 6, 2011 at 12:11, Chris Tessaglia-Hymes wrote: > Andrew, > > Thanks for pulling this together, and thanks Bill, for providing these clips! > > Is it most typical for American Bitterns to produce these paired calls during > migration, or do they often just do single isolated notes? > > This is very helpful! > > Thanks again! > > Sincerely, > Chris T-H > > -- > Christopher T. Tessaglia-Hymes > TARU Product Line Manager and Field Applications Engineer > Bioacoustics Research Program, Cornell Lab of Ornithology > 159 Sapsucker Woods Road, Ithaca, New York 14850 > W: 607-254-2418 M: 607-351-5740 F: 607-254-1132 > http://www.birds.cornell.edu/brp > > > > -Original Message- > From: Andrew Farnsworth [mailto:andrew.farnswo...@gmail.com] > Sent: Thursday, October 06, 2011 11:59 AM > To: Chris Tessaglia-Hymes > Cc: NFC-L@cornell.edu; Bill Evans > Subject: Re: [nfc-l] American Bittern NFC > > Hi all, > With Bill Evans's permission, I attach a heavily edited cut of American > Bittern flight calls that Bill recorded and sent to me - I believe these > recordings come from Minnesota, though I cannot say for sure without some > further investigation. This is certainly the best recording I have, I am not > sure and have not yet checked if others exist in Macaulay or Xeno-Canto. > > Best, > Andrew > > On Thu, Oct 6, 2011 at 09:59, Chris Tessaglia-Hymes wrote: >> Does anyone have an example of an American Bittern NFC they could >> attach and post to the List? >> >> >> >> Thanks! >> >> Sincerely, >> Chris T-H > > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Upland Sandpiper in Portugal?
Magnus et al, This call sounds perfect for Upland Sandpiper to me. As Bill Evans pointed out, there's nothing else in North America that sounds like this. There is some variation in the number of notes given by Upland, and this bird gave a common pattern of two similar rising notes followed by a lower, softer note. Sometimes there are three or more rising notes, and sometimes the terminal note is very faint or lacking. But this call is well within the norm for the species. I don't know all the European possibilities, but I would be very surprised if another species could match this call so well. best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Magnus Robb" To: "nfc-l@cornell.edu Call ListServe" Sent: Sunday, September 18, 2011 5:06:50 AM Subject: [nfc-l] Upland Sandpiper in Portugal? While recording the other night at Sintra, Portugal, I heard a single call that seems to me to be spot on for an Upland Sandpiper. I should explain that this is a species that has only been recorded twice in Portugal. We have been having a major influx of Nearctic waders in Europe, so now would be a good time for one to show up. Anyway, the question is whether this really sounds as good for Upland as I think it does. I've only seen and heard one before, though I've listened to recordings many times. So I'd be very grateful for some feedback about this call. If you heard it over North America, would it go down as an Upland, and does it still stand up to scrutiny on closer analysis? I've compared it with examples on www.xeno-canto.org and find that it is particularly close to the last two examples from Argentina. But nothing beats field experience, which I hardly have for this species. I'd love to know your opinions and if possible hear some night migration examples from North America. I'm sending the recording to the list via yousendit, so that only those who are interested need to download it. Let me know if there are any problems. If this doesn't work then I'll have to think of something else. I don't have my own website. best regards, Magnus -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Flight calling tonight in northeast US
Ted et al, In heavy flights, usually record an x for each species and indicate the number of calls/minute in the comment field (for each species, if possible). Anyone with better ideas? Best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com On Sep 17, 2011, at 7:07 PM, Ted Floyd wrote: > Well! The most intriguing part of Benjamin's posting is surely the > last line of the NFC-L sig file. > > How DO you submit nocturnal flight call observations to eBird? > > Best, > Ted > > > > > From: bounce-38049280-9667...@list.cornell.edu > [mailto:bounce-38049280-9667...@list.cornell.edu] On Behalf Of > Benjamin Van Doren > Sent: Thursday, September 15, 2011 9:15 PM > To: nfc-l > Subject: [nfc-l] Flight calling tonight in northeast US > > Hi all, > > Fairly good numbers of flight calls audible from SE NY as I type > this (probably averaging a few per minute). Many Northern Parulas, > some Chestnut-sided Warblers, American Redstart, poss. Tennessee, > Veery, Swainson's Thrush, assorted "zeeps," etc., in several minutes > of listening. > > Benjamin Van Doren > White Plains, NY > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re:[nfc-l] Apparent flyover BLACK RAIL female advertising call (Westchester Co., NY)
Benjamin et al., One other possibility to consider here is a partial call from a female Virginia Rail. After listening to the call again, it may be a little low for Black Rail, and the temporal pattern (April 21) seems better for Virginia. Just an alternate hypothesis! Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com - Original Message - From: "Benjamin Van Doren" To: NFC-L@cornell.edu Cc: "Michael O'Brien" , "Tom Burke" , "Andrew Farnsworth" Sent: Saturday, June 25, 2011 5:16:08 PM Subject: Apparent flyover BLACK RAIL female advertising call (Westchester Co., NY) Hi all, Michael O'Brien kindly informed me that I posses a recording of an apparent BLACK RAIL's female advertising call, a rarely-recorded vocalization! I've attached it in this message; it was recorded on 4/21/2011 at 8:50 PM from the Marshlands Conservancy in Rye, NY. The microphone was located in a field, and despite combing through the surrounding many minutes of the raw recordings I can't find any other vocalizations, so it seems that this was flyover bird passing through (though there is marsh nearby). To my knowledge, there is only one previous Westchester County, NY record of Black Rail, from June 1986, interestingly at the same preserve where this recording was made (though in the marsh). So if anyone has a mystery low-pitched, loosely buzzy flight call recording that sounds like this one, you might have recorded a Black Rail! Benjamin Van Doren White Plains, NY -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Least Bittern variant flight call?
Hi Benjamin, Both of these calls sound fine for Least Bittern to me. Just a little variation. Best, Michael Michael O'Brien Victor Emanuel Nature Tours www.ventbird.com On Jun 24, 2011, at 7:22 AM, Benjamin Van Doren wrote: > Hi all, > > I recorded the attached two calls in Rye, NY (along the coast of > Long Island Sound) this past spring. The first (LEBI. > 20110524.030445.28.wav) is a typical Least Bittern flight call, > while the second (LEBI poss.20110524.030425.48.wav) is a different > call, recorded 20 seconds before the first. It doesn't really sound > like Least Bittern, but, spectrographically, it has a similar arched > shape and is exactly the same length, so I am thinking that perhaps > it is a different call of that species, one that I haven't seen > described before. Again, to the ear it does not sound like a typical > Least Bittern call at all, but the close temporal proximity between > the calls and their apparent spectrographic similarities (which > could, of course, just be superficial) got me thinking that maybe > it's a variant flight call of that species. This microphone has > recorded seven Least Bittern calls this spring, conservatively of 4 > individuals, and spread out over the migration season (4/30, 5/9, > 5/24, 5/31), which I think is interesting on a couple levels. > > If anyone has heard/recorded this call (LEBI poss. > 20110524.030425.48.wav) before from a Least Bittern (or a different > species!), feel free to chime in. All thoughts welcome. > > Good listening, > > Benjamin Van Doren > > > -- > NFC-L List Info: > Welcome and Basics > Rules and Information > Subscribe, Configuration and Leave > Archives: > The Mail Archive > Surfbirds > BirdingOnThe.Net > Please submit your observations to eBird! > -- > > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC-L_SubscribeConfigurationLeave.htm ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://www.surfbirds.com/birdingmail/Group/NFC-L 3) http://birdingonthe.net/mailinglists/NFCL.html Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Nocturnal flight calls, Colorado's Front Range, 3+ years of data
Hi all, Andrew brings up an interesting question about midsummer nocturnal flight calls. As he suggests, I think there are a variety of different behaviors going on here. In the case of cuckoos, their midsummer nocturnal flight calls usually seem to be associated with good breeding habitat, suggesting that these are local breeders, not birds on the move. I know at least in New Jersey and Maryland where Black-billed Cuckoo is much scarcer than Yellow-billed, there are certain spots where I can go and listen at night and predictably hear Black-billed Cuckoo calling overhead. In the case of rails (King, Clapper, Virginia, Black, Sora, and Moorhen, at least, all give nocturnal flight calls in midsummer) my sense is that these are birds searching for ephemeral breeding habitats – maybe listening for frogs or other rails as they fly over. I could see Nelson's Sparrow or other marsh birds doing the same thing. Other non-marsh-birds may be doing the same sort of thing too. If a Grasshopper Sparrow’s field gets mowed, it needs to go find another one, and the safest time to do that would be at night. Then there is molt migration like the Chipping Sparrows in Colorado. Although relatively few species seem to do such a large-scale molt migration, a small percentage of many species do seem to move a moderate distance to molt while the bulk of the population stays to molt closer to the breeding grounds. Bobolink is a good example – small numbers regularly appear at coastal stopover sites from as early as late June before the large-scale migratory push appears in mid-late August. A number of warblers do the same thing, like the handful of Yellow-rumped Warblers that appear annually in Cape May in mid-August (and then vanish – lying low while they molt, I guess) before the rest of them arrive in October. best, Michael O’Brien - Original Message - From: "Andrew Farnsworth" To: "Ted Floyd" Cc: NFC-L@cornell.edu Sent: Thursday, July 29, 2010 8:36:27 AM Subject: Re: [nfc-l] Nocturnal flight calls, Colorado's Front Range, 3+ years of data Hello all, Ted, I congratulate you on another excellent and timely post. Regarding our attention to details: a couple of thoughts. . .apologies for hijacking the thread a little! Molt migration is a fascinating phenomenon, and many, myself included, are still eager to see a larger scale effort to monitor this behavior (in particular the nocturnal movements by acoustic monitoring). Has anyone on the list operated acoustic monitoring stations in the intermountain and mountain western US - Rockies/Great Basin/etc. - for any extended periods during the past few summers (or in the more distant past)? Ted (and others), what other species would you consider typical in the early July flights? And what of mid-June to early July flights in Colorado and elsewhere in the west? And expanding to a larger scale, what do we know about nocturnal movements associated with molt migration in other parts of the world (especially outside the western hemisphere!)? >From the US, East coast perspective, I am also interested to hear opinions about the nature of nocturnal movements that occur between mid-June and late-July in the Northeastern US. Presumably, in some cases, we are recording actual, continuous migratory movements for species that are late/early migrants (rails/Yellow Warbler, Louisiana Waterthrush) . . . but is this true in all cases? Are there species, such as those in the next sentences, for which we think we have a clear understanding of migration phenology but for which we really do not? Could be . . . but consider this . . . A number of mid-June to mid-July recordings made in New York state (various people in Ithaca and Manhattan at the least) have turned up an interesting diversity of nocturnal flight calls including Sora, Virginia Rail, Black-billed and Yellow-billed Cuckoo, Black-throated Blue Warbler, Canada Warbler, Grasshopper Sparrow, Nelson's Sparrow, etc. The placement of the recording stations and the attributes of the recordings are consistent with recording birds in nocturnal flight (rather than flight calls recorded nocturnally from birds on the ground or in typical habitat). Are we recording movements of adults of multi-brooded birds, failed breeders, pre-migratory movements of young of the year, facultative movements following irregular resources? Best, Andrew On Wed, Jul 28, 2010 at 5:00 AM, Ted Floyd wrote: > Hello, Birders. > > Here's an 86-kilobyte PowerPoint image, attached, summarizing the > results of my nighttime listening efforts at Greenlee Preserve, Boulder > County, Colorado, 2007-2010. Boulder County is northwest of Denver. The > county's western boundary is the Continental Divide, and the eastern > boundary is a bit higher than 5,000 feet. Data are July-November, > 2007-2009, plus July to date in 2010. > > Before opening up the file, I suggest thinking for a
Re: [nfc-l] mystery flight call - S Louisiana
Erik, This sounds like a Common Moorhen. They do a variety of muffled clucks like that. best, Michael O'Brien - Original Message - From: "Erik Johnson" To: "Nocturnal Flight Call ListServe" Sent: Tuesday, April 6, 2010 11:52:26 PM GMT -05:00 US/Canada Eastern Subject: [nfc-l] mystery flight call - S Louisiana Hi everyone, I was messing around with a Sennheiser mic directly plugged into my laptop April 4. Recordings were obviously soft without the help of a preamp, but discernible. I was mostly just trying to test my ear against the instant gratification of inspecting the sonogram and comparing to the flight call CD. I recorded this and cannot figure it out. Any thoughts would be appreciated. It was recorded 1.5 hrs after sundown near Lafayette, LA. File is 256kb, wav format. Let me know if the link doesn't work. https://filestogeaux.lsu.edu/public/download.php?FILE=ejohn33/26855CDCduk Thanks, Erik Johnson S Lafayette, LA ejohn33 AT lsu.edu -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Willow Flycatcher, Cuckoo, or similar nfc's in Delaware
Andrew, The first call is a Virginia Rail. Check out Lang Elliott's Stokes Eastern Birds CD for I nice example of this call, which is apparently given by females. I can't quite make out the second call on your recording, but it doesn't sound like a cuckoo to me. best, Michael O'Brien - Original Message - From: "Andrew Albright" To: "nfc-l" , edni...@verizon.net Sent: Tuesday, April 6, 2010 10:33:58 PM GMT -05:00 US/Canada Eastern Subject: Re:[nfc-l] Willow Flycatcher, Cuckoo, or similar nfc's in Delaware http://soundcloud.com/user3781125/4apr10-lewes The first one is the one that I thought sounded Willow Flycatcher=ish. Also, not sure about the second one - kind of sounds like a Cuckoo - but that would also be pretty early. Any better ID's? Sincerely, Andrew On Tue, Apr 6, 2010 at 1:03 AM, Andrew Albright wrote: > Saturday night, I recorded something that sounded like a "fast" Willow > Flycatcher's "fitzspew" call. In addition to not sounding exactly > like it, it is a little early for Willow in Southern Delaware. > Location - southern Delaware ~2am. > > However, I checked Evans/Obrien's guide and they give something > different for Willow for NFC. > > 1. Anyone ever record Willow? > 2. What are the closest other choices for me to check? > > Sincerely, > Andrew > -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Night flight call station results-Maine-April 1-3
Maybe the robins over your station are typically too high to be heard in the middle of the night. Just a thought. Re terns, I have also only herd Caspian. I have heard them both spring in and fall inland, but I don't recall ever hearing them along the coast. Michael - Original Message - From: "Jeff Wells" To: "Michael O'Brien" Cc: NFC-L@cornell.edu Sent: Tuesday, April 6, 2010 4:08:38 PM GMT -05:00 US/Canada Eastern Subject: RE: [nfc-l] Night flight call station results-Maine-April 1-3 Very cool! Makes sense when you see large numbers of robins flying over in the early morning hours that they would be birds that have been moving at night. Funny though that over the years I don’t recall picking up any within the 10 PM-2 AM window that I think of as indicating birds moving through the night as opposed to in the early morning hours when it is not as clear whether they just started migrating or are descending. Speaking of birds that move through the night but are not as readily detected, have any of you picked up terns other than Caspian Tern migrating at night? It’s obvious that they migrate at night based on the way they just appear one morning in a location but it seems like you don’t hear them. Though at least Caspian Terns in the fall when they have still-dependent young regularly call back and forth with the trailing young birds at night. Jeff From: Michael O'Brien [mailto:tsw...@comcast.net] Sent: Tuesday, April 06, 2010 3:59 PM To: Jeff Wells Cc: NFC-L@cornell.edu Subject: Re: [nfc-l] Night flight call station results-Maine-April 1-3 Jeff, I'm interested in your assertion that American Robin is strictly a diurnal migrant. Perhaps that is true in some areas, but in Cape May it certainly is not. We regularly see massive American Robin flights at night, in fall at least. These flights often continue or resume in the first few hours of the morning and again in the last hour or so of the day. During particularly heavy flights, the movements may continue longer into the day, but my estimation is that the bulk of the movement always takes place at night. I find their behavior to be much like that of Bobolink, only they seem to be less vocal. It would be interesting to know what others have observed and if the situation is different elsewhere. My guess is that the main difference, if any, is that robins call more frequently in certain situations and fly more quietly in others. good listening! Michael O'Brien - Original Message - From: "Jeff Wells" To: NFC-L@cornell.edu Sent: Tuesday, April 6, 2010 2:42:45 PM GMT -05:00 US/Canada Eastern Subject: [nfc-l] Night flight call station results-Maine-April 1-3 I started my automated recording station for the season here in Maine on Thursday night, April 1st. Although there were few calls each of the last three nights, the numbers increased a little each night from about 10 the night of the 1st to about 30 last night. There were a few Hermit Thrushes the first night, 6 the 2nd and 12 the night of the 3rd. There were a few Killdeer each night, a Wood Duck, and 4-10 sparrows each night with Song and White-throat plus a couple that may be American Tree Sparrow and a junco or two. A few other items of interest: -several nights had Herring Gull calls in the middle of the night that I assume are night migrating birds; -several nights had the squeal flight calls of American Robins around midnight. Although I sometimes have what I assume to be local on-the-ground robins sing and give ground alarm calls in the middle of the night, they don't give the squeal calls. The acoustics of the recorded squeal calls also seem more like birds overhead. I suspect that, as unlikely as it seems, that these were night-flying robins when by all accounts the species is only a diurnal migrant; -one night I had what sounded like a bit of song of a night-flying Hermit Thrush. I typically get some night-flying birds in May that break out in song or partial song while flying overhead but I had never picked that up for Hermit Thrush. I posted some of the call files on my blog at: www.borealbirds.org/blog Jeff Wells -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Night flight call station results-Maine-April 1-3
Jeff, I'm interested in your assertion that American Robin is strictly a diurnal migrant. Perhaps that is true in some areas, but in Cape May it certainly is not. We regularly see massive American Robin flights at night, in fall at least. These flights often continue or resume in the first few hours of the morning and again in the last hour or so of the day. During particularly heavy flights, the movements may continue longer into the day, but my estimation is that the bulk of the movement always takes place at night. I find their behavior to be much like that of Bobolink, only they seem to be less vocal. It would be interesting to know what others have observed and if the situation is different elsewhere. My guess is that the main difference, if any, is that robins call more frequently in certain situations and fly more quietly in others. good listening! Michael O'Brien - Original Message - From: "Jeff Wells" To: NFC-L@cornell.edu Sent: Tuesday, April 6, 2010 2:42:45 PM GMT -05:00 US/Canada Eastern Subject: [nfc-l] Night flight call station results-Maine-April 1-3 I started my automated recording station for the season here in Maine on Thursday night, April 1st. Although there were few calls each of the last three nights, the numbers increased a little each night from about 10 the night of the 1st to about 30 last night. There were a few Hermit Thrushes the first night, 6 the 2nd and 12 the night of the 3rd. There were a few Killdeer each night, a Wood Duck, and 4-10 sparrows each night with Song and White-throat plus a couple that may be American Tree Sparrow and a junco or two. A few other items of interest: -several nights had Herring Gull calls in the middle of the night that I assume are night migrating birds; -several nights had the squeal flight calls of American Robins around midnight. Although I sometimes have what I assume to be local on-the-ground robins sing and give ground alarm calls in the middle of the night, they don't give the squeal calls. The acoustics of the recorded squeal calls also seem more like birds overhead. I suspect that, as unlikely as it seems, that these were night-flying robins when by all accounts the species is only a diurnal migrant; -one night I had what sounded like a bit of song of a night-flying Hermit Thrush. I typically get some night-flying birds in May that break out in song or partial song while flying overhead but I had never picked that up for Hermit Thrush. I posted some of the call files on my blog at: www.borealbirds.org/blog Jeff Wells -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES ARCHIVES: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] passerines with sexually dimorphic flight calls?
All, I have the impression that Blue Grosbeak and Passerina buntings are sexually dimorphic in their flight calls, higher pitched in females, lower in males, but have never tested this in any rigorous way. Has anyone else looked into this? Michael O'Brien - Original Message - From: "Magnus Robb" To: "nfc-l@cornell.edu Call ListServe" Cc: "Andrew Farnsworth" , "SLIMBIRD Gerard" Sent: Friday, December 18, 2009 12:04:22 PM GMT -05:00 US/Canada Eastern Subject: [nfc-l] passerines with sexually dimorphic flight calls? Equally interesting is the question of which passerines (and 'near-passerines') can be sexed according to their flight calls outside of the breeding season. I have not searched for examples in any thorough way, although I have been recording migrants and noting sex when possible for a long time, without noticing examples. During spring migration, some birds may sing while passing overhead, and depending on the species, this might be limited to males. Limiting the discussion to flight calls, however, I can only think of Raven as a passerine known to have at least some male- or female-only calls throughout the year. There are many more examples among non-passerines, eg Apus swifts, but most passerines seem to share non-breeding call repertoire across the sexes without noticeable differences. I would be delighted to be shot down and shown that there are many examples, but what are they? Alternatively, are there instances of some passerine species where males use certain shared calls much more often than females outside the breeding season? all the best, Magnus Robb On 18 Dec 2009, at 16:2324, SLIMBIRD Gerard wrote: A related discussion which I’m sure many on the list might be interested in learning more about in general is flight call variation of adult verses juvenile birds. Any known examples of North American species that give distinctive age related flight calls either diurnal or nocturnal? Sincerely, Gerard Phillips Ontario, Canada On 12/17/09 10:48 AM, "Andrew Farnsworth" < andrew.farnswo...@gmail.com > wrote: variation may exist among calls given in migration, non-breeding, and post-breeding seasons, and on and on -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES Archives: 1) http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html 2) http://birdingonthe.net/mailinglists/NFCL.html 3) http://www.surfbirds.com/birdingmail/Group/NFC-L Please submit your observations to eBird: http://ebird.org/content/ebird/ --
Re: [nfc-l] Nocturnal migration, Boulder County, Colorado, Aug. 23-25
Ted, et al, Re MacGillivray's, I don't have any recordings but I have heard them give a husky "seet" much like that from Mourning Warbler. best wishes, Michael O'Brien - Original Message - From: "Ted Floyd" To: nfc-l@cornell.edu Sent: Tuesday, August 25, 2009 2:18:04 PM GMT -05:00 US/Canada Eastern Subject: [nfc-l] Nocturnal migration, Boulder County, Colorado, Aug. 23-25 Hello, all. 1. With light north-northeast winds and decent cloud cover, the pre-dawn night flight earlier today, Tuesday, Aug. 25th, over Lafayette, Boulder County, Colorado, was the best thus far this season. (There's something special about the exact date of Aug. 25th here in Boulder County.) Anyhow, details at http://tiny.cc/r13NJ 2. Detectable nocturnal migration over Boulder County was light Aug. 23rd and 24th. Basically, just the core species for this time of year: Wilson's Warbler, presumed Brewer's Sparrow, and dwindling numbers of Chipping Sparrows. And a cool Red-breasted Nuthatch. Details: http://tiny.cc/ojbox 3. Just out of curiosity, anybody got good, credible flight calls of MacGillivray's Warbler? That one has me somewhat flummoxed, I haveta say. 4. Recent postings from Jay Withgott and Jim Danzenbaker. Great stuff! And, now, for a brief proclamation from my soapbox. I assume that with nocturnal flight calls, as with seemingly all other matters ornithological, we shouldn't think of the phenomenon in simple "East-vs.-West" terms. Our continent has a fundamental three-part division, at least ornithologically speaking: (1) East and North; (2) Interior West; and (3) Pacific Slope. Not that anyone around here has been guilty of declaring otherwise! But I figured I'd nip it in the bud, just in case. All best, Ted Floyd (still waiting for just a single, stinkin' Catharus thrush...) --- Ted Floyd Editor, Birding --- Please support the American Birding Association: Click on http://www.goodsearch.com/?charityid=884482 to search the internet. Check out the American Birding Association on FaceBook: http://www.facebook.com/group.php?gid=22934255714 Check out the American Birding Association on Twitter: http://twitter.com/abaoutreach Please visit the website of the American Birding Association: http://www.aba.org -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html -- -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.mail-archive.com/nfc-l@cornell.edu/maillist.html --
