Re: [nfc-l] reflections on a monumental nocturnal migration

[Benjamin Van Doren]

Bill & David -

Andrew Farnsworth and I have 6 ARUs deployed within the greater NY metro
area, so we too have recordings for that night. Can't wait to see what they
hold (though everything may not be extracted and classified for few months).
I was listening for about an hour on the night of the 10th and heard many
more flight calls than I've ever heard from my house, so the flight should
be interesting to quantify (and interesting to compare to the Cape May
mics).

Good listening, watching, and predicting, everyone!

Benjamin Van Doren
White Plains, NY

On Wed, Sep 15, 2010 at 8:17 PM, David La Puma wrote:

> Awesome, Bill.
>
> Might I add that tonight should be an excellent flight for the same region;
> the largest since the Sept 10-11 flight. If you find me tomorrow in the
> early AM, I'll have a Rogue Northwestern Ale freshly chilled.
>
> Cheers- and good listening!
>
> David
>
> ps. we have data from several mics around Cape May for that night- so we
> should talk about comparing our analysis once we bring in the recordings.
>
>
> 
>
> David A. La Puma
> Postdoctoral Associate
> New Jersey Audubon Society
> 600 Route 47 North
> Cape May Court House, NJ 08210
> Office: 609.861.1608 x33
> Fax:609.861.1651
>
> Websites:
> http://www.woodcreeper.com
> http://badbirdz2.wordpress.com
>
> Photos:
> http://www.flickr.com/photos/woodcreeper
>
>
>
>
>
>
>
> On Wed, Sep 15, 2010 at 4:05 PM, Bill Evans wrote:
>
>> 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 at a pub
>> of consensual choice somewhere on the planet. So, for those who have an ear
>> to hear and an eye to see in this manner, take note of future fall
>> migrations over northeastern US in case of cashing in on my offer. I wager,
>> given the rarity of such large nocturnal migrations in the past 20 years,
>> and the crushing inertia of human civilisation, that a flight the density
>> and breadth of Sep 10-11 2010 will not happen again in our lives across
>> interior northeastern USA.  If so, I will be singing "kumbaya" in reverance.
>>
>> As I recall, it was about a week in advance that I began preparations to
>> surf the then subtley-evident behemoth wave. Allocation of spousal attention
>> was reduced; the kids welfare rationalized circularly by my pending
>> documentary actions. We walk a thin line of sanity in this nocturnal
>> migration preoccupation, especially so during wartime and amidst other human
>> tragedies on our nerve within a keystroke. But we prevail in the bigger
>> picture, imprinting earth with our natural history activities, respectfully
>> & nonetheless.
>>
>> The pulse of migration over central New York State on the night of Sep
>> 10-11 rocked the relative historic framework. My initial calculations were
>> off (http://www.birdingonthe.net/mailinglists/NFCL.html#1283970775), but
>> you only lose in such events when you miss them. The flight happened two
>> nights later than I thought, and Catharus fuscescens y Wilsonia pusilla
>> flight calling turned out to be normal for the time of year, instead of the
>> higher numbers and proportions I had guessed. But the number of migrants
>> aloft burst forth with full remnant ebullience. That density was nature-born
>> and the species composition a delightfully telling ancient echo. The flight
>> is now just a memory for a few of us, but indicative records remain:
>>
>> Radar reflectivity and velocity images from the night are available for
>> download for another 24 hours or so at:
>> http://www.rap.ucar.edu/weather/radar/.  Specifically, the NEXRAD records
>> from Albany, Watertown, Binghamton, and Buffalo, NY along with State
>> College, PA show sign of sustained 28+ dBZ biological reflectivity crossing
>> the breadth of interior NY (Albany to Buffalo) and moving southward across
>> central PA.
>>
>> The link below leads to a thermal image video I made during a period of
>> peak passage in the flight (11:15-12:00 EDT) from 610 m asl at the
>> Connecticut Hill Wildlife Management Area (15 km east of Ithaca, NY, US).
>> The flight activity shown in the video likely represents the lower portion
>> of 28+ dBz radar reflectivity that was occurring on this clear sky night --
>> targets were noted passing at a rate >100 per 5 minute period. This thermal
>> video was made with a ren

[nfc-l] Archiving Flight Call Recordings

[Benjamin Van Doren]

Hi all,

I've only recently started keeping large amounts of raw flight call
recordings (i.e., whole nights for a whole season), with the hope that
as technology improves and better call extraction technologies become
available, they can be put to use. However, they are all in WAV
format--uncompressed--and it is becoming a problem to hold on to
hundreds of gigabytes, soon to be terabytes, of recordings that will
only grow larger.

So my question is, does anyone have a good method for storing and/or
compressing such audio files? I hesitate to convert the files into,
say, MP3, because data is lost in the process, but perhaps others know
more than I about what the tradeoffs are.

Some Northern Waterthrushes, a couple Ovenbirds, and a few assorted
zeeps last night.

Thanks in advance,

Benjamin Van Doren
White Plains, NY

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Re: [nfc-l] First migration of the season possible tonight in the mid-atlantic?

[Benjamin Van Doren]

Hi all,

I'm in White Plains, NY and have been listening/recording for the past few
hours. Not much going on flight call-wise, perhaps two or three calls total!

Benjamin Van Doren

On Thu, Sep 8, 2011 at 11:25 PM, David La Puma wrote:

> Andrew et al.:
>
> oh, It's DEFINITELY ON:
> http://weather.rap.ucar.edu/radar/nids/images/N0R/KUSA/20110909_030900.png
>
> heavy migration out of the NE US tonight almost exclusively on NE winds and
> heading SW as a result (not good for Cape May- but good for inland migrant
> traps). I don't hear anything outside of my place in Villas, NJ (just north
> of the Cape May canal) but I think it has more to do with birds being high
> up tonight. I took my mic down just before Irene and have yet to re-install
> it. Anyone got a mic running in the region and hearing birds?
>
>
> Cheers- and good birding
>
> David
>
> ps. I'll post a radar interpretation for the mid-Atlantic and Northeastern
> US on http://www.woodcreeper.com by 6:00am. Derek Lovitch has been
> covering the Gulf of Maine from his new collaborative Facebook page here:
> http://www.facebook.com/ME.Gulf.Watch .  For anyone in Florida, Angel and
> Mariel Abreu will be posting to 
> http://Badbirdz2.wordpress.com<http://badbirdz2.wordpress.com/>and for those 
> of you in the Pacific NW, Greg Haworth is posting daily to his
> new radar/migration website Birds Over Portland:
> http://birdsoverportland.wordpress.com/
> 
>
> David A. La Puma
> Postdoctoral Associate
> New Jersey Audubon Society
> 600 Route 47 North
> Cape May Court House, NJ 08210
> Office: 609.861.1608 x33
> Fax:609.861.1651
>
> Teaching/Research Profile:
> http://www.woodcreeper.com/teaching
>
> Websites:
> http://www.woodcreeper.com
> http://badbirdz2.wordpress.com
>
> Photos:
> http://www.flickr.com/photos/woodcreeper
>
>
>
>
>
>
>
> On Thu, Sep 8, 2011 at 11:06 PM, Andrew Albright <
> andrew.albri...@gmail.com> wrote:
>
>> Well it seems like it's been since spring since there was any night
>> flight.   The surface and lower level winds seem to be out of the
>> northeast and amazingly all the rain seems to be gone.  Maybe birds
>> are too water-logged to take off though?
>>
>> However, I just listened outside and heard nothing and there's no
>> reliable radar to look at for this area (slightly northwest of
>> Philly).
>>
>> Andrew Albright
>> Maple Glen, PA
>>
>> --
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[nfc-l] Flight calling tonight in northeast US

[Benjamin Van Doren]

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

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Re: [nfc-l] Flight calling tonight in northeast US

[Benjamin Van Doren]

Hi all,

I usually do just that--record an 'x' and comment number of calls. Unless
there is just one call, or multiple calls sufficiently spread out such that
I feel I can accurately judge the number of individuals.

I have heard that they are developing a protocol for entering night flight
calls into eBird (Stationary, Traveling, etc., and then one for flight
calls). But, I don't know what the time frame for that is.

First Gray-cheeked Thrush of the fall a couple nights ago!

Benjamin

On Sat, Sep 17, 2011 at 7:32 PM, Michael O'Brien  wrote:

> 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
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Re: [nfc-l] Randon stuff from Colorado

[Benjamin Van Doren]

Hi Ted and all,

I've been recording for nearly 7 months in a saltmarsh in NY--lots of
samples of waterfowl wingbeats and I've noticed definite differences in
pitch and wingbeat frequency (as would be expected based on differences in
size and wing shape). Sounds like it would be a neat thing to look in to,
and, since wingbeats are of course noises that can be recorded easily in the
daytime with known species identity, something that wouldn't be so difficult
to accomplish with a bit of time!

Benjamin


On Tue, Oct 25, 2011 at 7:37 AM, Ted Floyd  wrote:

> Make that Sunday, OCTOBER 23rd.
>
> (My mind's still back in August--when we get the really big flights in
> Colorado!)
>
> --Ted
>
>
>
> -Original Message-
> From: bounce-38191634-9667...@list.cornell.edu
> [mailto:bounce-38191634-9667...@list.cornell.edu] On Behalf Of Ted Floyd
> Sent: Tuesday, October 25, 2011 5:33 AM
> To: nfc-l
> Subject: [nfc-l] Randon stuff from Colorado
>
> Hello, NFC-Lers.
>
> We're way past the peak of audible nocturnal landbird migration here in
> the foothills of the Rockies, but there's still a bit on the move. I was
> out before sun-up on Sunday morning, August 23rd, and I heard a Hermit
> Thrush flying over, and also a light flight of what I believe were
> American Tree Sparrows. Location was Pella Crossing, Boulder County,
> just east of the steep foothills of the Front Range.
>
> A bit off-topic, but I love the schizophrenic experience of birding in
> places like Pella Crossing: A little bit before sunrise that morning, an
> Eastern Screech-Owl and a "Nelson's" (interior west) White-breasted
> Nuthatch were vocalizing from the same copse; Black-billed Magpies were
> coming from a roost, and a Blue Jay was calling somewhere; a Common
> Grackle was stirring, and an Audubon's Warbler, perhaps a dawn migrant,
> flew over. East meets West, totally.
>
> One other thing. I've been enjoying listening to night flights of ducks.
> Lots of variation in the sounds of their wingbeats. Maybe the ultimate
> challenge for nocturnal earbirders?...  ;)
>
> ---
>
> Ted Floyd
> Editor, Birding
>
> Please check out the website of the ABA: http://aba.org
>
> And please check out The ABA Blog: http://blog.aba.org
>
> We're on twitter, too: http://twitter.com/BirdingMagazine
>
> ---
>
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> --
>
>

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[nfc-l] Acadian Flycatcher NFC?

[Benjamin Van Doren]

Hi All,

I've provided a link to download a recording made on 9/16/10 (yes, I'm
backlogged!) at 1:18 AM in Rye, NY. It's midwinter so I'm a bit rusty, but
sounds to me like an Acadian Flycatcher calls four times (at the 1.9, 15.8,
24.4, and 29.5 second marks), getting louder and then receding. Also some
other thrush and grosbeak calls in there--good ID practice!

Evans and O'Brien note in the Acadian Flycatcher species page: "Not known
to call in nocturnal migration but presumed to do so occasionally based on
the behavior of Least Flycatcher," so I figured this might be of some
interest (assuming my ID is correct).

The link to download the file from my Google Docs account (apparently the
file, at 1.8 MB, is too big for this list) is:
https://docs.google.com/open?id=0B7WSVg6XfhnQZjBjMjY3NGQtOWE5YS00NjQ0LWEwOGUtOWE1ODI0ZDBjNzE0
or, http://tinyurl.com/7szgm7q

Happy to hear any thoughts!

Sincerely,

Benjamin Van Doren
White Plains, NY

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Re: [nfc-l] Night Migrating Raptors

[Benjamin Van Doren]

Awesome pictures, Chris. Michael, I recorded a calling Osprey on 4/16/11 at
about midnight. However, I'm not completely convinced it's of an overflying
migrant because it sounds relatively close to the microphone and there are
nesting Ospreys close by. Still, it's the only Osprey vocalization I've
found from that microphone (again, with nesting Ospreys very near) so I'm
not exactly sure what to make of it. Does anyone know about the amount of
vocalizing territorial Ospreys do at night? I've attached the recording.

Benjamin

On Thu, Mar 1, 2012 at 9:26 PM, Michael O'Brien  wrote:

> Chris,
>
> Those photos are amazing! And they brings up an interesting general
> question about nocturnal migration by raptors. How much do they move at
> night? In Cape May I see plenty of evidence of at least limited nocturnal
> movement. We regularly see American Kestrels, Sharp-shinned Hawks, and
> Northern Harriers present in numbers (sometimes already high overhead) at
> first light when they were not present the day before. Also I have seen
> Osprey and Peregrine head out in apparent migration flight over Delaware
> Bay well after sunset. But the only nocturnal flight call I have heard from
> a raptor was from an Osprey which gave acouple of "tew" calls overhead a
> good two hours before sunrise. I wonder if others have seen or heard
> evidence of nocturnal migration by raptors.
>
> thanks,
> Michael
>
> Michael O'Brien
> Victor Emanuel Nature Tours
> www.ventbird.com
> --
> *From: *"Christopher T. Tessaglia-Hymes" 
> *To: *"NFC-L" 
> *Sent: *Thursday, March 1, 2012 4:01:22 PM
> *Subject: *Re: [nfc-l] Night Migrating Raptors
>
>
> Below is a link of a few pictures I managed to capture of a couple of the
> individuals. Unfortunately, due to our operations, I was not able to take
> time for extensive documentation. It was a very neat spectacle to have
> witnessed. Some details are at right of the album at the link, below.
>
>  https://picasaweb.google.com/112522159565855378380/NightMigratingRaptors
>
>  Sincerely,
> Chris T-H
> Currently at sea in the Gulf of Mexico, aboard the M/V Emily Bordelon.
>
>
>
>  On Mar 1, 2012, at 4:41 AM, Christopher T. Tessaglia-Hymes wrote:
>
>   Although these birds weren’t making vocalizations, but it has been
> really cool to witness.
>
>  I’m on the M/V Emily Bordelon about 150 miles WNW of Tampa, FL, working
> on recovering oceanographic research instruments. We’re conducting 24-hour
> operations with deck lights blazing. from approximately 07:10 to 07:25 GMT
> (02:10 to 02:25 AM EST) the deck crew and I observed at least three
> simultaneous SWALLOW-TAILED KITES, 1 Laughing Gull, and a single OSPREY
> approach the vessel during an extended full-stop drifts. This was at about
> N28 26.491 by W85 27.459. I managed to get some half-decent photos of the
> Kites as they drifted over the vessel.
>
>  At another point, from approximately 08:40 to 09:20 GMT (02:40 to 03:20
> AM EST) we were visited by at least two more night migrating SWALLOW-TAILED
> KITES. I did not obtain photos of those birds. This was at about N28 17.256
> by W85 32.837.
>
>  I imagine there are several birds in migration across the Eastern Gulf
> of Mexico at this point and we should expect to have more observations at
> the next couple of nighttime stations.
>
>  Good birding!
>
>  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
>
>
>  --
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>   --
>  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
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>
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[nfc-l] NFC rattle call

[Benjamin Van Doren]

Hi All,

This call (attached) was recorded in May 2011 in Rye, NY. My first
impression is a Lapland Longspur rattle call, choosing that over Snow
Bunting because the call seems to be more descending than rising (see the
Flight Call Guide). However, the late date gives me pause, as both species
have for the most part departed by April, definitely by May. It's very
faint in the recording but doesn't seem right for Belted Kingfisher to me.
Thoughts welcome!

Sincerely,
Benjamin Van Doren
White Plains, NY

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20110513_014529_rattle.wav
Description: Wave audio

[nfc-l] Heron NFCs (Tricolored?)

[Benjamin Van Doren]

Hi All,

This recording is from Rye, NY last May--a coastal saltmarsh. Sounds to me
like a heron, and Tricolored is my best guess (although it is rare in the
county). I've never had the pleasure of actually hearing a Tricolored Heron
call in flight, but based on a few recordings and text in Sibley that
describes their vocalizations as "Soft, nasal moaning; usually lacking
scratchy or rasping quality of most other herons and egrets," I think it's
the best bet.

I've attached both my recording and a spectrographic comparison of it with
the Tricolored Heron recording of the Stokes Guide (Eastern). Obviously in
the latter recording the bird is closer and the call is louder so more
detail is evident on the spectrogram, but I think it's a good match based
on overall shape and rhythm of the vocalizations.

If anyone agrees or disagrees, please let me know! And, on similar note,
has anyone compiled a comparison of heron/egret/bittern flight calls? I
have bits and pieces from here and there but I don't know of any one
resource like Evans & O'Brien.

Thanks,
Benjamin Van Doren
White Plains, NY

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20110527_002045_heron.wav
Description: Wave audio

[nfc-l] Red-headed Woodpecker?

[Benjamin Van Doren]

Hi All,

The attached recording is from 12 May 2012. My first thought is that it
sounds pretty good for Red-headed Woodpecker, although not exactly right
for what I'm used to (diurnally). In the Flight Call Guide (Evans &
O'Brien), however, the presumed RHWO nocturnal recordings do show a good
amount of variation, so perhaps this does best fit that species. Red-headed
Woodpeckers are very uncommon in my area but do occasionally occur as
migrants and sometimes winter residents. In the recording there seems to be
a soft cluck-like sound right before the call, too soft for me to really
make out but American Robin-like. I don't really see the main vocalization
being a robin, though, unless it is a very weird one...

The microphone was located along the coast in a saltmarsh, but not too far
from woods (and people).

Thoughts welcome!

Benjamin Van Doren
White Plains, NY

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MM.20120512.211836.06.sel000285_LONG.wav
Description: Wave audio

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

[Benjamin Van Doren]

Hi Chris,

Thanks for the feedback. Never recorded an NFC of one before--very cool.
This was recorded at 9:18 PM, just over an hour after sunset (8:04 PM),
with the Song Meter 2 setup by Wildlife Acoustics, Inc. (with the NFC plate
mic). The whole thing was on a sandbar in a saltmarsh, and I built a wooden
contraption that slides onto a rebar to hold both the SM2 and mic (can't
have anything resting on the ground in case there is a very high tide). Has
worked very well.

Benjamin

On Mon, Aug 6, 2012 at 7:19 PM, Christopher T. Tessaglia-Hymes <
c...@cornell.edu> wrote:

>  I, personally, see no hesitation with assigning the ID as that of
> Red-headed Woodpecker. Nice clean recording, too. What time of night was
> this? What is your microphone and recorder setup?
>
>  Thanks, Ben!
>
>  Sincerely,
> Chris T-H
>
>
>
> Sent from my iPhone
>
>
>
> On Aug 6, 2012, at 18:25, "Benjamin Van Doren" 
> wrote:
>
>   Hi All,
>
>  The attached recording is from 12 May 2012. My first thought is that it
> sounds pretty good for Red-headed Woodpecker, although not exactly right
> for what I'm used to (diurnally). In the Flight Call Guide (Evans &
> O'Brien), however, the presumed RHWO nocturnal recordings do show a good
> amount of variation, so perhaps this does best fit that species. Red-headed
> Woodpeckers are very uncommon in my area but do occasionally occur as
> migrants and sometimes winter residents. In the recording there seems to be
> a soft cluck-like sound right before the call, too soft for me to really
> make out but American Robin-like. I don't really see the main vocalization
> being a robin, though, unless it is a very weird one...
>
>  The microphone was located along the coast in a saltmarsh, but not too
> far from woods (and people).
>
>  Thoughts welcome!
>
>  Benjamin Van Doren
> White Plains, NY
>
>
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Re: [nfc-l] Red-headed Woodpecker?

[Benjamin Van Doren]

Amazing. Bill, I think your first impression may be right. I went back to
the original file (which I *had* gone back to, but hadn't looked more than
several seconds on both sides of the sound in question to see if there was
anything related). Sure enough, starting about 8 seconds earlier I start to
see these thin, squeaky sounds just like the very soft one you can hear
immediately preceding the scream, interspersed with some child-like sounds.
I.e., a girl on a squeaky swing. When I first saw the recording I briefly
considered the human possibility, but the shape of the call and the
modulation looked decidedly avian when originally sandwiched between two
Veeries in my window of calls to classify. I noted that it didn't sound
exactly like it was coming from the sky (with some reflection present,
etc.) but didn't think too much of it.

Easy to forget there are other, non-avian things producing sounds out there
at night... Guess it's all about context!

Benjamin


On Tue, Aug 7, 2012 at 9:38 AM, Bill Evans wrote:

>   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 it’s a wandering bird.
>
> The only caveat on the ID comes up for me when I went back to listen to
> the RHWO calls on the Flight Call Guide. I noticed a similarity with
> Virginia Rail “McGreer” type calls, though RHWO sounds lower-pitched. But
> the question arises whether we can 100% rule out a rail vocalization?
>
>  Bill E
>
>  *From:* Benjamin Van Doren 
> *Sent:* Monday, August 06, 2012 7:36 PM
> *To:* Christopher T. Tessaglia-Hymes 
> *Cc:* NFC-L 
> *Subject:* Re: [nfc-l] Red-headed Woodpecker?
>
> Hi Chris,
>
> Thanks for the feedback. Never recorded an NFC of one before--very cool.
> This was recorded at 9:18 PM, just over an hour after sunset (8:04 PM),
> with the Song Meter 2 setup by Wildlife Acoustics, Inc. (with the NFC plate
> mic). The whole thing was on a sandbar in a saltmarsh, and I built a wooden
> contraption that slides onto a rebar to hold both the SM2 and mic (can't
> have anything resting on the ground in case there is a very high tide). Has
> worked very well.
>
> Benjamin
>
>  On Mon, Aug 6, 2012 at 7:19 PM, Christopher T. Tessaglia-Hymes <
> c...@cornell.edu> wrote:
>
>>  I, personally, see no hesitation with assigning the ID as that of
>> Red-headed Woodpecker. Nice clean recording, too. What time of night was
>> this? What is your microphone and recorder setup?
>>
>> Thanks, Ben!
>>
>> Sincerely,
>> Chris T-H
>>
>>
>>
>> Sent from my iPhone
>>
>>
>>
>> On Aug 6, 2012, at 18:25, "Benjamin Van Doren" 
>> wrote:
>>
>>   Hi All,
>>
>> The attached recording is from 12 May 2012. My first thought is that it
>> sounds pretty good for Red-headed Woodpecker, although not exactly right
>> for what I'm used to (diurnally). In the Flight Call Guide (Evans &
>> O'Brien), however, the presumed RHWO nocturnal recordings do show a good
>> amount of variation, so perhaps this does best fit that species. Red-headed
>> Woodpeckers are very uncommon in my area but do occasionally occur as
>> migrants and sometimes winter residents. In the recording there seems to be
>> a soft cluck-like sound right before the call, too soft for me to really
>> make out but American Robin-like. I don't really see the main vocalization
>> being a robin, though, unless it is a very weird one...
>>
>> The microphone was located along the coast in a saltmarsh, but not too
>> far from woods (and people).
>>
>> Thoughts welcome!
>>
>> Benjamin Van Doren
>> White Plains, NY
>>
>>
>> --
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>>
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Re: [nfc-l] Red-headed Woodpecker?

[Benjamin Van Doren]

Chris -

Unfortunately, that salt marsh is close to relatively dense suburban areas,
with houses as close as 0.5 km (right across the harbor channel) and a golf
course directly adjacent to it. I am not that surprised that a sound like
this drifted across the water, although it is better recorded than I would
expect even for that distance.

Benjamin

On Tue, Aug 7, 2012 at 11:02 AM, Christopher T. Tessaglia-Hymes <
c...@cornell.edu> wrote:

>  Fascinating. The sound is remarkably similar in structure to Red-headed
> Woodpecker, when viewed as a spectrogram (I had initially only listened to
> it with my iPhone); however, I notice that this example does start off with
> intense modulation, followed by a more pure tone. This is different from
> the examples of Red-headed Woodpecker given on the Evans and O'Brien Night
> Flight Calls CD-ROM. In those examples, the known and presumed Red-headed
> Woodpecker flight calls start off more pure-toned and become modulated, not
> the other way around. This being human in nature also explains the harmonic
> pure-tone squeaks prior to the vocalization (that of a swing or see saw,
> perhaps). Benjamin, do you know if there is a playground or yard nearby? I
> assumed from your description that this was out in a salt marsh, away from
> human habitation, perhaps wrongfully so.
>
>  I would like to second Bill's note of how similar Virginia Rail
> "k'kreeer" calls can be to the Red-headed Woodpecker calls. I recorded a
> high number of Virginia Rail vocalizations this spring-summer, many of
> which were the "k'kreeer" calls.
>
>  Good birding!
>
>  Sincerely,
> Chris T-H
>
>
>
>  On Aug 7, 2012, at 10:29 AM, Benjamin Van Doren wrote:
>
> Amazing. Bill, I think your first impression may be right. I went back to
> the original file (which I *had* gone back to, but hadn't looked more
> than several seconds on both sides of the sound in question to see if there
> was anything related). Sure enough, starting about 8 seconds earlier I
> start to see these thin, squeaky sounds just like the very soft one you can
> hear immediately preceding the scream, interspersed with some child-like
> sounds. I.e., a girl on a squeaky swing. When I first saw the recording I
> briefly considered the human possibility, but the shape of the call and the
> modulation looked decidedly avian when originally sandwiched between two
> Veeries in my window of calls to classify. I noted that it didn't sound
> exactly like it was coming from the sky (with some reflection present,
> etc.) but didn't think too much of it.
>
>  Easy to forget there are other, non-avian things producing sounds out
> there at night... Guess it's all about context!
>
>  Benjamin
>
>
> On Tue, Aug 7, 2012 at 9:38 AM, Bill Evans wrote:
>
>>   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 it’s a wandering bird.
>>
>> The only caveat on the ID comes up for me when I went back to listen to
>> the RHWO calls on the Flight Call Guide. I noticed a similarity with
>> Virginia Rail “McGreer” type calls, though RHWO sounds lower-pitched. But
>> the question arises whether we can 100% rule out a rail vocalization?
>>
>>  Bill E
>>
>>  *From:* Benjamin Van Doren 
>> *Sent:* Monday, August 06, 2012 7:36 PM
>> *To:* Christopher T. Tessaglia-Hymes 
>> *Cc:* NFC-L 
>> *Subject:* Re: [nfc-l] Red-headed Woodpecker?
>>
>>   Hi Chris,
>>
>> Thanks for the feedback. Never recorded an NFC of one before--very cool.
>> This was recorded at 9:18 PM, just over an hour after sunset (8:04 PM),
>> with the Song Meter 2 setup by Wildlife Acoustics, Inc. (with the NFC plate
>> mic). The whole thing was on a sandbar in a saltmarsh, and I built a wooden
>> contraption that slides onto a rebar to hold both the SM2 and mic (can't
>> have anything resting on the ground in case there is a very high tide). Has
>> worked very well.
>>
>> Benjamin
>>
>>  On Mon, Aug 6, 2012 at 7:19 PM, Christopher T. Tessaglia-Hymes <
>> c...@cornell.edu> wrote:
>>
>>>  I, personally, see no hesitation with assigning the ID as that of
>>> Red-headed Woodpecker. Nice clean recording, too. What time of night was
>>> this? What is your microphone and recorder setup?
>>>
>>> Thanks, Ben!
>>>
>>> Sincerely,
>>> Chris T-H
>>>
>>>
>>>
>>> Sent from my

[nfc-l] Last night

[Benjamin Van Doren]

Hi All,

After depriving myself of sleep two nights ago, I only stayed out for about
an hour from 11-12 last night. Had the spectrograms scrolling by on my
laptop hooked up to a mic. Used BirdLog to eBird on my phone as I sat
there--great for counting calls! Wish I could've stayed out longer...

Here's the list:

Cornell University--A-Lot, Tompkins, US-NY
Sep 10, 2012 11:03 PM - 11:59 PM
Protocol: Nocturnal Flight Call Count
13 species (+5 other taxa)

Canada Goose  1
Green Heron  1 NFC 1
Veery  4 NFC 4
Swainson's Thrush  X NFC 8
Wood Thrush  4 NFC 4
thrush sp.  X NFC 5
Ovenbird  2 NFC 2
Common Yellowthroat  2 NFC 2
Bay-breasted Warbler  3 NFC 3
Chestnut-sided Warbler  X NFC 5
Setophaga sp.  X NFC 82
Canada Warbler  1 NFC 1
Wilson's Warbler  3 NFC 3
warbler sp.  X NFC 9
Savannah Sparrow  4 NFC 4
sparrow sp.  2
Rose-breasted Grosbeak  X NFC 24
passerine sp.  X NFC 11

Benjamin Van Doren
Ithaca, NY

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Re: [nfc-l] Long-eard owl or similar sounding species with nfc?

[Benjamin Van Doren]

Andrew -

A year or two ago I recorded a series of LEOW-like sounds that sounded decent 
but not exactly right for this species. This was during late August I think. 
They were spaced much closer together (every 10-15 s), and varied a lot in 
pitch and tone. I may have posted a recording to this list, I'm not sure. At 
any rate, the consensus seemed to be that they were likely not of avian origin. 
Maybe deer? I'm not familiar with all the mammalian options. 

Maybe it would be interesting to compare our recordings. 

Of course, could be that you have a real Long-eared.

Does anyone know how often LEOW calls outside of the breeding season?

Benjamin Van Doren

On Sep 20, 2012, at 10:53 AM, Andrew Albright  wrote:

> I recorded nfc from 2-5am this morning.   Diversity and quantity is pretty 
> good.
> 
> At about 2:30am I had a single monotone "whoo" that reminded me of
> Long-eared owl recordings (Stokes) except that it was slightly higher
> pitched.  Then ~30 minutes later, I heard the same single "whoo" again
> except that this was lower pitched and almost exactly matches Stokes'
> Long-eared recording, which reduces the chance of night flight.  I
> went through all the owl species on Stokes East Coast and still the
> only thing that it sounded like was Long-eared owl.
> 
> 1. Resident owls here are Eastern screech and Great Horned.  I've have
> only rarely heard GHO from the location I record nfc (backporch of 14
> yr old suburban subdivision).  Immature GHO doesn't ever do a single
> "whoo" call does it?
> 2. I checked ebird and September records of Long-eared owl are very
> very sparse in the Mid-Atlantic, which reduces the chance of
> Long-eared owl
> 
> Any other species that I should check?
> 
> Sincerely,
> Andrew
> 
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Re: [nfc-l] Northeast US: Night Migration Tonight

[Benjamin Van Doren]

I too was out last night until about 2 am in Ithaca. Very similar species 
composition to Chris, plus a Gray-cheeked Thrush, Wood Thrush, Scarlet Tanager 
and a couple other things (and minus Mourning Warbler). Braved the 45-degree 
temps in a sweatshirt, but totally worth it!

Benjamin Van Doren
Ithaca, NY

On Sep 10, 2012, at 4:39 PM, "Christopher T. Tessaglia-Hymes" 
 wrote:

> Another heads-up…
>  
> Tonight looks very good for a night migration. Should see a good push of 
> birds down from southern Canada into the US. How this plays out depends upon 
> where listening stations are relative to the high pressure system moving 
> across the Northeast. For example, regions west of Rochester, NY may not see 
> significant movement after midnight, while areas east of Rochester, NY may 
> see continuous movement all night.
>  
> Last night, while listening and watching the spectrogram scrolling live from 
> Etna, NY from about 9pm to 2pm, Gerard Phillips, Jay McGowan and I heard the 
> following, plus some:
>  
> Common Yellowthroats
> Ovenbirds
> Mourning Warblers (sounds like a “Bobolink of the warblers”)
> Black-throated Blue Warblers
> Chestnut-sided Warbler
> Magnolia Warbler-types
> Lots of Bay-breasted Warblers
> Rose-breasted Grosbeaks
> Hermit Thrush (1-2)
> Veeries
> Swainson’s Thrushes
> Bobolinks
> Lots of Green Herons
> Chipping Sparrow
> double-banded upsweeps
> downsweeps
> seeps
> other zeeps
> and our local Coyotes
>  
> Good luck listening, tonight!
>  
> Sincerely,
> Chris T-H
>  
> --
> Christopher T. Tessaglia-Hymes
> 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
>  
>  
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[nfc-l] Nelson's Sparrows

[Benjamin Van Doren]

All -

Looks like there was a sizable Nelson's Sparrow flight in the Northeast on
the night of Fri-Sat 10/28-29. Anyone record any interesting ammodramus
calls?

Benjamin Van Doren
Ithaca, NY

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Re:[nfc-l] Nelson's Sparrows

[Benjamin Van Doren]

9/28-29, rather

On Mon, Oct 1, 2012 at 10:42 AM, Benjamin Van Doren wrote:

> All -
>
> Looks like there was a sizable Nelson's Sparrow flight in the Northeast on
> the night of Fri-Sat 10/28-29. Anyone record any interesting ammodramus
> calls?
>
> Benjamin Van Doren
> Ithaca, NY
>

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Re: [nfc-l] head-scratcher

[Benjamin Van Doren]

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  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" 
> *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
>
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MM.20110501.003334.38.sel005487.BANO.wav
Description: Wave audio

Re: [nfc-l] Recent activity in southwestern PA and a few questions

[Benjamin Van Doren]

Hi Geoff and Ken,

I'll echo Ken's thanks for posting. Unknown1 is interesting -- the
Baltimore Oriole recordings I've heard (from the Flight Call Guide) are all
rising, somewhat explosively. Your recording, on the other hand, is meekly
descending. I wonder if Rose-breasted Grosbeak might be a better option?

Best,
Benjamin


On Fri, May 6, 2016 at 1:25 AM, Kenneth V. Rosenberg 
wrote:

> Hi Geoff,
>
> Just my thoughts on your unknown….
>
> Unknown1 definitely sounds like and oriole, but I couldn’t say that a
> Baltimore wouldn’t sound like that. Your unknown 2 sounds good for American
> Bittern to me.
>
> thanks for posting your lists and unknowns as a way to get more of us out
> there listening
>
> KEN
>
>
> Kenneth V. Rosenberg
> Conservation Science Program
> Cornell Lab of Ornithology
> Office: 607-254-2412
> cell: 607-342-4594
> k...@cornell.edu
>
> On May 5, 2016, at 10:27 PM, Geoff Malosh  wrote:
>
> Hi everyone,
>
> Lots of recent activity here in western Pennsylvania, including a few
> calls that I wouldn’t mind second opinions on.
>
>
> First is the attached call labeled “Unknown1” which sounds to my ear quite
> like the “yeehr” of an Orchard Oriole, but this species (according to the
> Evans and O’Brien CD) is not known to call on nocturnal migration. Is there
> something else this call could be? I will say this isn’t the only time I’ve
> heard this type of call over my yard but this is by far the best recording
> I’ve gotten of a call of this type. (May 2 at 12:31am)
>
> Second (Unknown2) is another low-frequency call like the possible Least
> Bittern I posted last week. This one sounds like a Black-crowned
> Night-Heron to me … any other ideas? (May 2 at 1:43am)
>
> Lastly is the call I listed as Cedar Waxwing on this eBird checklist:
> http://ebird.org/ebird/view/checklist?subID=S29290856. This would be the
> first nocturnal Cedar Waxwing call I’ve had here, and was wondering if this
> really is definitive or if there are any other possibilities for this call.
> It seems pretty spot on for waxwing and apparently they are known to call
> at night occasionally, but I always like to be cautious with “presumed”
> birds like these.
>
>
>
> Of general interest, the biggest night of the year here so far was May
> 1-2, which was interrupted by a thunderstorm that came along around 3:45am.
> Here is the post-midnight checklist with several clips:
> http://ebird.org/ebird/view/checklist?subID=S29412937. Both of the
> attached Unknowns were made on this same night, by the way.
>
> On May 3 I was surprised to hear a Greater Yellowlegs song on the
> recordings: see http://ebird.org/ebird/view/checklist?subID=S29429788.
>
>
> As always if there are any errors in any of these checklists please let me
> know.
>
>
>
> Good listening!
>
> Geoff Malosh
> Pittsburgh, PA
>
> www.flickr.com/photos/geoffmalosh/
>
> --
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Re: [nfc-l] Help with ID of Sparrow/warbler NFCs

[Benjamin Van Doren]

Hi Jerald,

Congrats on getting a mic set up! To me these all look consistent with
White-throated Sparrow (although WTSP 2121 5-9-16) might have to be left as
sparrow sp.). The one you labeled Song Sparrow looks to me more like a
poorly-recorded White-throated Sparrow - note the two large modulations
towards the end of the call. It's also a fairly flat call, not changing
much in frequency; a typical Song Sparrow call would be more curved/arched,
especially at the ends.

In the future, I'd recommend using something like Dropbox to send multiple
files so you don't have to send multiple messages (and it'll also be easier
for people to keep track of them).

Have fun recording!
Benjamin

On Tue, May 10, 2016 at 10:33 AM, Jerald  wrote:

>
>
> On Tue, May 10, 2016 at 10:33 AM, Jerald  wrote:
>
>>
>>
>> On Tue, May 10, 2016 at 10:33 AM, Jerald  wrote:
>>
>>>
>>>
>>> On Tue, May 10, 2016 at 10:33 AM, Jerald  wrote:
>>>


 On Tue, May 10, 2016 at 10:32 AM, Jerald  wrote:

>
>
> On Tue, May 10, 2016 at 10:32 AM, Jerald  wrote:
>
>>
>>
>> On Tue, May 10, 2016 at 10:32 AM, Jerald  wrote:
>>
>>> Hello,
>>>
>>> I am new to both this listserv and NFC recording (I got my mic set
>>> up on Saturday), and I was wondering if someone could help ID these 
>>> calls I
>>> heard last night. I think that they're mostly White-throated Sparrow, 
>>> and
>>> maybe a Chipping or Song Sparrow, but I'm not sure. I'll send the
>>> attachments one at a time because I keep getting a message saying it's 
>>> too
>>> big.
>>>
>>> Thank you!
>>>
>>> Jerald
>>> Delaware
>>> --
>>> *Jerald*
>>>
>>>
>>
>>
>> --
>> *Jerald*
>>
>>
>
>
> --
> *Jerald*
>
>


 --
 *Jerald*


>>>
>>>
>>> --
>>> *Jerald*
>>>
>>>
>>
>>
>> --
>> *Jerald*
>>
>>
>
>
> --
> *Jerald*
>
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Re: [nfc-l] Mystery Calls

[Benjamin Van Doren]

Perhaps Snow Bunting?

> On May 2, 2017, at 2:10 PM, John Kearney  wrote:
> 
> Hi Preston,
> Very interesting flight call. It reminds me of a type 2 Red Crossbill. It’s 
> sounds a bit soft for this species but distance from mic might cause that. It 
> is also unusual to get just one or two notes. Were there any others? I see 
> from eBird there are some recent records from MA, RI, and NJ.
> John Kearney
> Carleton, NS
>  
> From: bounce-2314226-53237...@mm.list.cornell.edu 
>  
> [mailto:bounce-2314226-53237...@mm.list.cornell.edu 
> ] On Behalf Of Preston 
> Lust
> Sent: May-02-17 06:47
> To: Nfc-l Digest Recipients  >
> Subject: [nfc-l] Mystery Calls
>  
> 5/1/17 -- 10:03 PM
>  
>  
> Last night, I recorded some interesting calls - the first one sounding 
> similar to northern cardinal. Do these calls originate from two separate 
> species of birds, or are they one? And which species? Thank you.
>  
>  
> Preston Lust, Westport CT
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