Re: [nfc-l] good/good enough for Northern Parula?

2019-10-26 Thread Bill Evans
that out. My best guess is this could be a flat variant of the descending “zeep” Yellow Warbler regularly gives in fall migration (at least in eastern NA). There is no example of the descending YEWA nfc in the original flight call guide - the 2nd ed. will have it. Bill Evans From: Wim van Dam

Re: [nfc-l] good/good enough for Northern Parula?

2019-10-26 Thread Bill Evans
that out. My best guess is this could be a flat variant of the descending “zeep” Yellow Warbler regularly gives in fall migration (at least in eastern NA). There is no example of the descending YEWA nfc in the original flight call guide - the 2nd ed. will have it. Bill Evans From: Wim van Dam

[nfc-l] Re: [nfc-l] Nocturnal Flight Calls – Prothonotary Warbler?

2019-04-24 Thread Bill Evans
Looks like Chipping Sparrow to me, perhaps two calls from the same bird - a clue is the 80+ ms duration, but also there is a faint initial downsweep that is structurally more in line with CHSP. Bill From: Preston Lust Sent: Wednesday, April 24, 2019 4:39 PM To: Night Flight Call Discussions

[nfc-l] Re: [nfc-l] Nocturnal Flight Calls – Prothonotary Warbler?

2019-04-24 Thread Bill Evans
Looks like Chipping Sparrow to me, perhaps two calls from the same bird - a clue is the 80+ ms duration, but also there is a faint initial downsweep that is structurally more in line with CHSP. Bill From: Preston Lust Sent: Wednesday, April 24, 2019 4:39 PM To: Night Flight Call Discussions

Re: [nfc-l] NFC yesterday night

2018-08-13 Thread Bill Evans
I’d guess a Swainson’s Thrush making non-symmetric sounds with its syrinx. The upper track doesn’t fit well for any other species, so I don’t think it is two birds calling coincidentally. The lower track fits well for SWTH. Bill From: Meena Madhav Haribal Sent: Monday, August 13, 2018 5:12

Re: [nfc-l] flight call guide update

2017-11-07 Thread Bill Evans
Old Bird 21c Micros, is it possible to have more info !? Can the microphone record at 24 bit? Thank you! Great news! Dioni Loïc Sauvé Laval, Québec 2017-11-06 23:55 GMT-05:00 Bill Evans : Greetings all, I'm happy to report that the old Evans & O'Brien Flight Call C

[nfc-l] flight call guide update

2017-11-06 Thread Bill Evans
rien and I will serve as initial editors and the scope will expand to all species in North America. Also wanted to let folks know that this week only I'm offering an off-season discount on my remaining stock (3) of Old Bird 21c mics -- $250 plus shipping, first come first serve. Bill E

Re: [nfc-l] Flight Call Help

2017-10-05 Thread Bill Evans
with a large percentage of the calls we tag with an ID. It's a fascinating intellectual quagmire. Regarding your attached unknown, an argument could be made for American Pipit. Bill Evans Danby, NY -Original Message- From: Hal Mitchell Sent: Wednesday, October 04, 2017 7:39 PM

Re: [nfc-l] Big Double-up

2017-01-28 Thread Bill Evans
Follow-up manuscript: Evans, W. R., M. Grosselet, and G. Ruiz Michael. An unidentified nocturnal flight call from southern Mexico. Huitzal 18(1):131-140. http://huitzil.net/blog/?p=1826 From: Bill Evans Sent: Friday, September 23, 2016 11:40 AM To: NFC- L Subject: [nfc-l] Big Double-up

Re: [nfc-l] Possible Dickcissel NFC

2016-11-06 Thread Bill Evans
Yes, that’s a Dickcissel. Congrats! Bill E From: Jerald Sent: Sunday, November 06, 2016 1:53 PM To: nfc-l Subject: [nfc-l] Possible Dickcissel NFC Hello all, Could someone with a bit more experience please confirm whether or not this is a Dickcissel? It's getting kind of late for them, and

Re: [nfc-l] Virtual Meet and Greet

2016-09-28 Thread Bill Evans
Thanks Chris. There is a lot happening with night flight calls these days. Another action that would be useful is having folks on this list with recent publications involving night flight calls post their citations. Or, if anyone on this list is aware of recent nfc publications by folks not on

Re: [nfc-l] Huge flight over NY, VT

2016-09-24 Thread Bill Evans
Same large flight down the Hudson River Valley last night with 2930 warbler and sparrow calls recorded with a 21c mic between 9pm-5am at a station in Chatham, NY (~20 miles southeast of Albany). Hourly record as follows: 9-1088 10-11127 11-12151 12-1 211 1-2402

[nfc-l] Big Double-up

2016-09-23 Thread Bill Evans
of the call is also attached. Many thanks, Bill Evans -- 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

Re: [nfc-l] missing first few milliseconds of spectrograms made in Raven

2015-01-22 Thread Bill Evans
there was no such delay apparent. Bill From: Bill Evans Sent: Thursday, January 22, 2015 7:40 AM To: Night Flight Call List Subject: [nfc-l] missing first few milliseconds of spectrograms made in Raven When I open a short night flight call wav file in Raven, the waveform window begins at 0 sec

[nfc-l] missing first few milliseconds of spectrograms made in Raven

2015-01-22 Thread Bill Evans
sound files, and perhaps wish to use such a short spectrogram in a publication. Anyone else notice this possible bug in Raven? Bill Evans -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES http://www.NortheastBirding.com/NFC

Re: [nfc-l] Blue Grosbeak?

2014-10-31 Thread Bill Evans
Sounds like a possibility to me too – at least something in the Blue Grosbeak/Indigo/Lazuli/Varied/Painted complex. The spectrogram indicates it is lower in frequency than typical for Indigo, but that doesn’t rule it out. Bill E From: Spahr, Timothy Sent: Friday, October 31, 2014 10:22 AM

[nfc-l] European flight call guide

2014-10-27 Thread Bill Evans
Anyone had a chance to peruse this new European flight call CD? Wondering if it is simply a CD version of the old Chappuis cassette tape set or whether it contains new info? Bird Sounds in Flight - MP3 CD 350 Species, 348 minutes running time, 850 Recordings. This MP3-DISC features 850 sound

Re: [nfc-l] NFC ID Help, Maryland Eastern Shore

2014-10-11 Thread Bill Evans
Doyle Sent: Saturday, October 11, 2014 7:45 AM To: Bill Evans Cc: NFC-L@cornell.edu Subject: Re: [nfc-l] NFC ID Help, Maryland Eastern Shore Hi Bill, I inadvertently had the setting on 16 kHz, messing around with some i-mics and recording apps, so I missed checking the default rate and figured

Re: [nfc-l] NFC ID Help, Maryland Eastern Shore

2014-10-10 Thread Bill Evans
Tough to tell from the spectrogram Diane. It shows a ~5 ms section of a steeply descending call. It appears a higher pitched portion above 8 kHz is chopped off. Perhaps in the territory of flying squirrel chirps with this one. Can you make a spectrogram showing the frequencies above 8 kHz or

Re: [nfc-l] anyone know if Old Bird 21c mic still available?

2014-02-18 Thread Bill Evans
Hi Andy, The 21c is currently sold out. I’ll have 10 to offer in late March and a tentative plan to have 30 more available by August 1st. These latter 30 mics would be an advance group order to keep costs down -- anyone interested, contact me by June 1. In the meantime Andy, I’m happy to send

[nfc-l] nocturnal movements

2013-09-08 Thread Bill Evans
Some patterns of songbird nocturnal migration across NY the past few weeks as indicated by nocturnal flight calls: http://www.oldbird.org/Data/2013/TransNE2013/NETransect-2013.html -Bill E -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES

Re: [nfc-l] Big flight last night in NJ

2013-05-21 Thread Bill Evans
583 warbler and sparrow calls logged in west-central NY (Alfred, NY) last night – this may be a high nightly tally for that station in spring (n= 5). Zeep ~50% Double-up ~10% American Redstart ~5% Canada Warbler ~4% Common Yellowthroat ~3% Chestnut-sided ~2% Savannah Sparrow ~2% Cape May ~1%

[nfc-l] On the utility of avian acoustic study at wind energy facilities

2013-02-21 Thread Bill Evans
NFCers, In the course of trying to win a competitive research contract sometimes one offers an in-kind (pro bono) study to sweeten the proposal. That's the case with the acoustic study at a NY wind energy project reported at the link below. The data was gathered ~5 years ago but the report was

[nfc-l] Breaking news: man who crunched too much data found impaled by parula warbler flight call

2012-09-18 Thread Bill Evans
Avian night flight calling by species/species-group across northeastern US last week: http://www.oldbird.org/Data/TransNE/9-16Sep12/9-16Sep12.html -Bill E -- NFC-L List Info: http://www.NortheastBirding.com/NFC_WELCOME http://www.NortheastBirding.com/NFC_RULES

Re: [nfc-l] Northeast US: Night Migration Tonight

2012-09-10 Thread Bill Evans
I just crunched last night’s flight calls from my station in the Town Danby NY - a few miles south of Ithaca. 487 warbler and sparrow flight calls from 9PM-5AM (21c/tseep-x). This is the high nightly total since this station began in mid-August. Getting late for Mourning Warbler but I did have

[nfc-l] rainbow

2012-09-07 Thread Bill Evans
Sometimes the simple things in life get lost in all the commotion, so I thought I’d share with you all my last 15 minutes or so: I was classifying a batch of night flight calls extracted from nature last night over the visitor center of the Jamestown Audubon Society in western NY. Problems

Re: [nfc-l] Red-headed Woodpecker?

2012-08-07 Thread Bill Evans
Oops, I overlooked that the call was from May 12, which would be in the window for a spring migrant in NY, though the call sounds doesn’t sound like it is from a bird in flight. Bill E From: Bill Evans Sent: Tuesday, August 07, 2012 9:38 AM To: Benjamin Van Doren ; Christopher T. Tessaglia

Re: [nfc-l] Red-headed Woodpecker?

2012-08-07 Thread Bill Evans
My first impression was a scream from a girl on a swing set. I then quickly came around to agreeing with Ben’s first impression and Chris. Pretty early for migrant RHWO though, as based on my experience their southbound migration in NY is the latter half of September and early October – perhaps

Re: [nfc-l] First Big Southbound push of fall migrants next few days in northern U.S??

2012-08-07 Thread Bill Evans
Dave, Your prediction was pretty good. There were mixed results Sunday night depending on whether one was listening to the east or west of the cold front, and as it turned out, last night was the biggest night flight calling event of the season across northeastern US. Bill E From: david

Re: [nfc-l] First Big Southbound push of fall migrants next few days in northern U.S??

2012-08-04 Thread Bill Evans
I’ve noticed via flight call monitoring at this time of year (in NY and vicinity) that songbirds tend to move every night regardless of cold fronts -- unless there are strong southerly winds or substantial rain events. Later in the season (mid-September – October) the flights seem more tied to

Re: [nfc-l] Etna, NY - Barn Owl

2012-08-03 Thread Bill Evans
>From 1991-1994 during fall migration I had a line of 3-7 (depending on year) >acoustic monitoring stations in an east-west transect across of NY. >Recordings were made using VCRs in long-play mode (9 hrs) on nights with good >migration conditions. I listened back to the tapes and catalogued

Re: [nfc-l] Etna, NY: Possible Nightjar?

2012-07-06 Thread Bill Evans
Sounds mammalish to me Chris – somewhat like a whistle pig (aka Woodchuck) though their calls are typically a bit higher-pitched and I’ve never heard one vocalize at night. From: Christopher T. Tessaglia-Hymes Sent: Friday, July 06, 2012 10:06 AM To: NFC-L Subject: [nfc-l] Etna, NY: Possible

Re: [nfc-l] Mystery NFC recording

2012-06-08 Thread Bill Evans
Interesting call Rob, and hard to pin down as it appears to be a muttering instead of a full announcement. I've ranged in considering Virginia or Black Rail, Osprey, and Whimbrel. Perhaps those more freshly afield can weigh in. Bill E -Original Message- From: Jay K Sent: Saturday,

Re: [nfc-l] migrating cuckoos

2012-06-07 Thread Bill Evans
There’s a delightful old paper by Gerald Thayer describing "the mid-summer, mid-night, mid-sky gyrations of the Black-billed Cuckoo, as noted by my father and me for three consecutive seasons in the southwestern corner of New Hampshire": ”Several years before we discovered the nocturnal-flight

Re: [nfc-l] Ajo, AZ flight last night

2012-05-26 Thread Bill Evans
Thanks Mike. So Red-faced does give a zeep! And it appears to have a wider frequency span than Yellow. Perhaps the wider-frequencied series of zeeps from Ajo around 2:29AM last night was from a Red-faced. Bill

[nfc-l] Ajo, AZ flight last night

2012-05-26 Thread Bill Evans
Nice flight across the Mexican–Arizona border region last night. It always amazes me how late spring migrants are crossing the border in the west (and probably the east as well). I recall camping along the border in Cabeza Prieta NWR back in ~1997 and hearing a steady flight of Swainson’s

Re: [nfc-l] Potentially Interesting NFC for Upstate NY

2012-05-16 Thread Bill Evans
Wow Chris, you have a good ear! I wouldn’t have been able to call that a species in the bunting complex simply based on the spectrogram, but I agree on listening that is likely what it is. Based on the apparent spectrographic frequency envelope of the call, it would be a lowish bunting type

Re: [nfc-l] Another empid (Alder?)

2012-02-14 Thread Bill Evans
Benjamin, I get a few calls like your first example every year in central NY -- see two examples on the hypothetical Yellow-bellied nfc page in the Flight Calls CD. I concur with Michael's assessment and also keeping an open mind for Alder and other empids. This is a tough group to make ID

Re: [nfc-l] Austin, TX - Listening Stations - 24 Nov to 31 Dec

2012-01-04 Thread Bill Evans
Hey Mike, There is no such CD that you refer to. Would appreciate it you could refer to both authors or simply the Flight Call CD (at least until someone else publishes a flight call cd). Regarding Harris' Sparrow flight call, I suspect they would be in with your Song Sparrows if you have

[nfc-l] Unknown

2011-12-01 Thread Bill Evans
All: This call was recorded last night at 11:40PM near Alfred, NY. Any ideas on species? ~Bill E -- 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)

Re: [nfc-l] American Bittern NFC

2011-10-06 Thread Bill Evans
- From: "Andrew Farnsworth" To: Cc: ; "Bill Evans" Sent: Thursday, October 06, 2011 1:38 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 nigh

[nfc-l] Alfred, NY last night

2011-09-23 Thread Bill Evans
676 warbler and sparrow calls logged at the Alfred, NY station last night (8:30PM-5:30AM). Data up at: http://www.oldbird.org/Data/States/NY/Alfred/fall2011/Alfred2011f.htm A solid flight with typical species composition for the date. Bill E -- NFC-L List Info:

Re: [nfc-l] big night flight tonight

2011-09-21 Thread Bill Evans
senberg Conservation Science Program Cornell Lab of Ornithology 607-254-2412 607-342-4594 (cell) k...@cornell.edu On Sep 21, 2011, at 9:55 AM, Bill Evans wrote: Ken appears to have tuned into one of the biggest calling night of the season so far in central NY. The acoustic station at Alfred Stat

Re: [nfc-l] big night flight tonight

2011-09-21 Thread Bill Evans
Ken appears to have tuned into one of the biggest calling night of the season so far in central NY. The acoustic station at Alfred Station, NY logged its season high number (988) of warbler and sparrow flight calls last night between 8:30PM-5:30AM. Based on spectrographic analysis roughly 4

Re: [nfc-l] Gray-Cheeked or Bicknell's Thrush?

2011-09-20 Thread Bill Evans
Andrew, I like your investigative approach. Right now the primary evidence suggesting the characteristics of Bicknell's thrush flight call is still tentative and based largely on the distinctiveness of "Gray-cheeked" type flight calls recorded in east-central Florida during spring migration

[nfc-l] nfc season update: west-central NY USA

2011-09-18 Thread Bill Evans
Greetings nfcers, Over the past 10 nights the acoustic station in Alfred Station, NY has logged an average of 303 warbler and sparrow calls per night, with a standard deviation of only 77. In other words, there has been a very consistent pattern of calling each night in contrast to the more

Re: [nfc-l] Upland Sandpiper in Portugal?

2011-09-18 Thread Bill Evans
I made a spectrogram of the call but it doesn't provide enough detail to help ascertain the ID other than that the frequency, time between notes, and basic time-frequency contour appear to generally match. Bill Evans - Original Message - From: "Magnus Robb" To: Sent: Sun

[cayugabirds-l] migration through night air

2011-08-15 Thread Bill Evans
ir homes at night in migration to South America. That likely won't be possible in 10 years. The species is in steep decline in NY as commercial wind energy threatens the last remaining NY breeding stronghold (Jefferson County). Bill Evans -- Cayugabirds-L List Info: http://www.NortheastBir

[nfc-l] hardware question from a beginner, recorder, preamp, etc

2011-06-14 Thread Bill Evans
e until you choose to analyze your data. Bill Evans - Original Message - From: "laurent fournier" To: Sent: Tuesday, June 14, 2011 10:15 AM Subject: [nfc-l] hardware question from a beginner, recorder, preamp, etc Hi All I am currently in the process of building th

Re: [nfc-l] Nocturnal Calls This morning

2011-05-16 Thread Bill Evans
>From 10PM-4AM last night I only recorded two "chips" (Chestnut-sided and >Canada types) from my residence ~6 miles south of Ithaca, so I suspect that >few of the migrants indicated on PA NEXRADs last night were making it this far >north -- perhaps a complex fallout zone across the southern

[nfc-l] NEXRAD interpretation

2011-05-13 Thread Bill Evans
Greetings NFC, I received a comment suggesting that it might be useful for the listserv to review how one knows when NEXRAD reflectivity is birds, insects, and when it is other phenomena. I think a lot of this comes with field experience over time -- associating nocturnal observations of

Re: [nfc-l] odd NEXRAD pattern

2011-05-02 Thread Bill Evans
Message - From: David La Puma To: Bill Evans Cc: NFC-L@cornell.edu Sent: Monday, May 02, 2011 4:45 PM Subject: Re: [nfc-l] odd NEXRAD pattern Bill That was my point. Clear air isn't an issue. I think the combined reflectivity and velocity suggest bird migration. You ask "

Re: [nfc-l] odd NEXRAD pattern

2011-05-02 Thread Bill Evans
activity this was. Bill E - Original Message - From: David La Puma To: Bill Evans Cc: NFC-L@cornell.edu Sent: Monday, May 02, 2011 3:25 PM Subject: Re: [nfc-l] odd NEXRAD pattern After reviewing the archive it looks like the KUEX radar was set on clear-air mode (here's

[nfc-l] odd NEXRAD pattern

2011-05-02 Thread Bill Evans
Interesting NEXRAD image from last: substantial migration to the east of a front in the eastern US, nothing unusual about that, but strange is one isolated radar lighting up in south-central Nebraska. -Bill E

[nfc-l] Avian towerkill mitigation

2011-01-05 Thread Bill Evans
x #1, and then clicking the Retrieve Document List button. Yours in bird, Bill Evans -- 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

Re: [nfc-l] nocturnal blackbird fatalities in Arkansas

2011-01-03 Thread Bill Evans
- From: Erin Macchia To: Bill Evans Cc: nfc-l@cornell.edu Sent: Monday, January 03, 2011 11:55 AM Subject: Re: [nfc-l] nocturnal blackbird fatalities in Arkansas Beebe, AR is a good-sized city, relative to most communities in northeast Arkansas. There is a large, well-lit water

Re: [nfc-l] nocturnal blackbird fatalities in Arkansas

2011-01-03 Thread Bill Evans
. Bill Evans - Original Message - From: Dave Slager To: nfc-l@cornell.edu Sent: Sunday, January 02, 2011 7:43 PM Subject: [nfc-l] nocturnal blackbird fatalities in Arkansas http://www.cnn.com/2011/US/01/02/arkansas.falling.birds/index.html I would guess a very large

[nfc-l] reflections on a monumental nocturnal migration

2010-09-15 Thread Bill Evans
Nfcers, I begin by stating simply that if anyone ever substantiates a future nocturnal vertebrate migration over interior northeastern US (in the first two weeks of September) bigger than what occurred the night of Sep 10-11, 2010.I will buy fine ale for the whole nfc listserv membership

Re: [nfc-l] Aug 27-Sep 3, 2010

2010-09-03 Thread Bill Evans
Greetings nfcers, I've been on travel to the midwest this past 10 days and am just catching up on recent nfc-l news: Browsing the NCAR NEXRAD archive, I see that Dave Nicosia was right in that there doesn't appear to have been any major push of nocturnal migrants in the interior northeastern

Re: [nfc-l] Dusk flight of White-winged Scoters and Brant over Boston, MA

2010-06-01 Thread Bill Evans
David- Thanks for providing the links referencing the Binghamton NEXRAD target I noted 10 days or so ago (early on to the near ENE in the Binghamton reflectivity movie you provided below). In hindsight, I agree with your assessment that this doesn't fit well for a flock of birds. For one, it

Re: [nfc-l] plover flight call ID

2009-09-28 Thread Bill Evans
Dave -- rings like one of those calls I know I've heard but can't pin it to species. My first take is that this is not from a plover, certainly not from Black-bellied or Semipalmated. There is the possibility of a weird Golden perhaps but it is unlike any I've heard. It is reminiscent of

Re: [nfc-l] Finch NFCs/Flight Calls of Migratory Birds

2009-09-01 Thread Bill Evans
at night. BTW, the shallow end of the pool for night flight calls is northern Canada. Iowa is the deep end! Bill E Bill Evans wrote: but it is now thought that all finches are sometimes involved with night movements in the east, especially in coastal areas. Mr. Evans, As interest in NFCs

Re: [nfc-l] Black-headed Grosbeak NFCs and ID help

2009-08-31 Thread Bill Evans
(?) in Washington State, but it is now thought that all finches are sometimes involved with night movements in the east, especially in coastal areas. I look forward to following your detective work on the identity of these calls and to hearing what others think. Bill Evans Danby, NY