[nfc-l] Maine tonight

[Jeff Wells]

After arriving home from one of the last boat trips of the season out to
Eastern Egg Rock to see puffins (we saw one) I listened for about 10
minutes at about 10 PM at my home in Gardiner, Maine. Above the din of
cricket noise there were nfc at a rate of about 4-6 per minute, mostly
warblers, plus a couple of Veery, prob Rose-breasted Grosbeak, Chipping
Sparrow.

Jeff Wells

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RE: [nfc-l] rails calling during migration

[Jeff Wells]

I also regularly get Virginia Rail and less regularly Sora over my house in 
Gardiner, Maine and have recordings of them. I live in a suburban neighborhood 
with no habitat for them nearby.

 

 I remember hearing a King Rail go over while chilling out after the World 
Series of Birding with other teams in the early morning hours in May in Cape 
May.

 

Jeff Wells

 

From: bounce-4237529-9874...@list.cornell.edu 
[mailto:bounce-4237529-9874...@list.cornell.edu] On Behalf Of David Irons
Sent: Tuesday, September 01, 2009 11:28 AM
To: hle...@utu.fi; mlanz...@gmail.com
Cc: nfc-l@cornell.edu
Subject: RE: [nfc-l] rails calling during migration

 

Greetings All,

While living in east-central Illinois several years ago, I heard both Virginia 
Rail and Sora call during nocturnal migrations. I heard these birds flying over 
my house, which was located in the small town of Fairmount in the vast corn and 
soybean "desert" of this region. The nearest potential breeding habitat was 
about two miles away.

Dave Irons
Content Editor BirdFellow.com <http://www.birdfellow.com> 
Eugene, OR 

> Date: Tue, 1 Sep 2009 13:21:44 +0300
> From: hle...@utu.fi
> Subject: Re: Re:[nfc-l] First recording ... rails on migration
> To: mlanz...@gmail.com
> CC: nfc-l@cornell.edu
> 
> Michael and others, 
> After my last email to the group Magnus Robb inquired about the Spotted 
> Flycatcher (Musstr) I mentioned, so I sent out an inquiry to the Finnish 
> birdnet about what migrants birders had heard. Among others Spotted was 
> "confirmed" although undocumented by recordings - hope that this will be done 
> soon. A couple of other interesting records came into moonlight. One such is 
> that when Tengmalm's Owls (Aegfun) are on the move they stay in contact at 
> night by calling - you can hear a flock moving by on a wide front. It was not 
> confirmed whether they do this calling during flight of if they sit down to 
> make these autumnal contact calls.
> 
> Now getting to the main point about Rails. I got a note from Mr. Janne Aalto, 
> who lives in Parikkala just next to the Russian border close to a good Rail 
> site Siikalahti. He told me that he had heard three rail species in flight: 
> Water Rail (Ralaqu), Spotted Crake (Porpor) and a Corncrake (Crecre). He was 
> a bit cautious in calling these night migration calls, but he told that the 
> birds were all definitely flying and wondered whether they started their 
> display calls ("songs") when they felt that they were approaching a familiar 
> display site. The Corncrake was apparently further up in the sky. I have 
> personally heard coots (Fulatr) and moorhens (Galchl) call during full 
> migration.
> 
> These sounds quite similar to your yellow rail observation.
> 
> regards
> Harry
> hle...@utu.fi
> Finland
> 
> -
> Harry J Lehto, Ph.D., Adj. Prof.
> Tuorla Observatory
> Department of Physics and Astronomy
> University of Turku
> Väisäläntie 20
> FI-21500 Piikkiö
> FINLAND
> hlehto(a...@sign)utu.fi
> 
> 
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[nfc-l] any info on Canadian radar images

[Jeff Wells]

Hi Bryan and others,

 

Does anyone know if it is possible to get the base reflectivity radar
images for Canadian stations? All I have been able to find from
Environment Canada seem to be images in which they remove any echoes
they classify as non-weather related which means most of the bird
migration.

 

Jeff

 

From: bounce-4240787-9874...@list.cornell.edu
[mailto:bounce-4240787-9874...@list.cornell.edu] On Behalf Of Bryan
Guarente
Sent: Tuesday, September 01, 2009 11:53 PM
To: nfc-l@cornell.edu
Subject: Re: [nfc-l] United States Radar Echoes - September 1, 2009

 

NFC-enthusiasts,
Jeff pointed out the radar echoes tonight which are pretty impressive,
especially along the Carolina and Virginia coasts.  Being a
meteorologist and a birdwatcher, this is of great interest to me.  For
those who are interested in sources of information about the weather
patterns aside from using the radar to detect objects, you can get some
information on my personal website:
http://homes.comet.ucar.edu/~guarente/birdweather/index.htm
   I have
compiled the links I often use for my own meteorological exploration, as
well as sites that would be useful specifically for bird migration.

I personally am a fan of checking the forecast streamlines for bird
migration as this is a good predictor of which nights will be good for
migration, but does not necessarily dictate when there will be
detectable NFCs, as other meteorological factors play in to this.  To
see the streamlines you can go here:
http://homes.comet.ucar.edu/~guarente/birdweather/stream.htm

Streamlines show the direction weightless particles would travel if
released in the wind field.

All times on this page are plotted on the top of the images, but they
are noted in UTC.  To see the current UTC time, you can go here:
http://www.time.gov/timezone.cgi?UTC/s/0/java  Also, the maps differ in
height from the surface through 700mb (or hPa).  These maps use pressure
as the height coordinate, but can be roughly thought of as 900mb = .5km
above sea-level, 850mb = 1.0km above sea-level, and 700mb = 1.5km above
sea-level.  The "Surface" maps plotted here are the surface of the earth
following topography.  Sorry to all those individuals outside of the US,
I only have access to the US model data, so I cannot currently plot
other locations aside from North America.  

Where the current streamlines have a component pointing toward the south
the radar echoes are brightest, except for where there is significant
topography to block the radar beam (the western 1/3 of the US).

Back to the radar: I am hoping someone will be able to point me in the
direction of a publication that discusses the radar cross-section or
backscattering properties of a bird in flight.  Are there any papers out
there about this?  I have found the papers that mention that birds show
up on radar, but none of them seem to mention the backscattering
properties of the birds.  

The current radars in the United States are very sensitive to the size
of the object they are reflecting waves off, up to a point.  This can
mean very different echoes for drizzle drops, rain drops, small hail,
very large hail, and birds because of the scattering
  regime in which it lies
(click link to read wikipedia article about scattering).  Most particles
in the atmosphere that are detected by weather radars are in the
Rayleigh scattering 
regime, but birds don't always fit in this regime, often extending in to
the Mie scattering   regime
which is not ideal for US weather radar detection.  However, that is
assuming that a bird is a sphere, which is a poor assumption.  I am
hoping to get my hands on some papers about the scattering properties of
birds that show how the radar waves reflect, but have yet to find any.
There are some algorithm papers available by Dinevich, but these lack
the actual scattering properties.  Anyone have a reference for me?

Thanks for any references you may have,

 

Bryan Guarente
Instructional Designer
The COMET Program
University Corporation for Atmospheric Research
Boulder, CO

 


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RE: [nfc-l] rails calling during migration

[Jeff Wells]

Check out amazing migration tonight in eastern NA if you are awake and get this 
note:
 
http://radar.weather.gov/Conus/index.php
 
Pretty good nfc rate tonight of 5-10 per minute just listening not recording or 
running detectors because of huge cricket population.
 
Jeff Wells
Gardiner, Maine

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[nfc-l] moonwatch volume

[Jeff Wells]

I'll bet that this question has been answered in the moonwatching
literature or someone out there has done the calculations but as I was
moonwatching last week and over an hour counted about a hundred birds,
it occurred to me that based on this sample I could roughly calculate
how many birds may have flown over me in that hour. I guessed that the
part of the sky I sampled (i.e. the disk of the moon) may have been
something like a thousandth of the area from horizon to horizon (just
very rough guess-estimate by eye) and if the part of the sky I was
watching was a fair representation of the number of birds passing over
all parts of the sky above me, then that would mean that roughly 100,000
birds passed over me during that hour. 

I am sure that there are a lot of caveats related to angles of sight,
etc., etc., and probably there is some sophisticated model for
estimating total volume of birds from a moon watch sample but even if
the number I came up with was anywhere close to the magnitude of total
number of birds then I can't help but be impressed.

Moonwatch experts, please give us the scoop!

Jeff



-Original Message-
From: bounce-4254153-9874...@list.cornell.edu
[mailto:bounce-4254153-9874...@list.cornell.edu] On Behalf Of Chase
Schiefer
Sent: Friday, September 04, 2009 10:39 PM
To: nfc-l@cornell.edu
Subject: [nfc-l] 5 minute moonwatch

A five minute session of moonwatching yielded an average of a bird a
minute. The surrounding clouds were bright enough as to be able to
follow birds till they reached darkness. Quite beautiful!

-- 
Sent from my mobile device

"Adventure is for the adventurous.
My face is set.
I go to make my destiny.
May many another youth be by me inspired to leave the snug safety of his
rut,
and follow fortune to other lands." Everett Ruess

Chase Schiefer
Bachmans' Ivory
Hazlet, New Jersey

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[nfc-l] radar ornithology in other countries?

[Jeff Wells]

Now that we have answered the question as to what radar images are
publically available in Canada, does anyone have any insight into
whether any other countries around the globe have publically available
weather radar images that can allow the public to follow migrating
birds?

 

Jeff


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RE: [nfc-l] is there anybody. OUT THERE.

[Jeff Wells]

Heavy call rates between 8:30-10:00 when I was listening tonight in central 
Maine. 
 
Jeff



From: bounce-4407897-9874...@list.cornell.edu on behalf of David La Puma
Sent: Thu 10/8/2009 8:41 PM
To: Nocturnal Flight Call ListServe
Subject: [nfc-l] is there anybody. OUT THERE.


Hey All- I just checked the radar and it looks like a pretty heavy flight over 
the Northeast US, the northern tier of the middle-states (northern Central and 
Mississippi Flyways) and the Southeast (especially the Southeast!). Is there 
anyone out listening tonight? The skies are pretty cloudy here in NJ, but the 
moon may not have risen enough to see over my trees... hopefully I'll get a 
glimpse of it soon, and can do a little moonwatching. 

Either way, if you're in any of the aforementioned areas, point your ears (or 
scopes) upward!

Cheers

David

David A. La Puma, Ph.D.
Dept. of Ecology, Evolution, & Natural Resources

Online Teaching Portfolio:
http://www.woodcreeper.com/teaching

Lockwood lab:  
http://rci.rutgers.edu/~jlockwoo

Websites: 
http://www.woodcreeper.com
http://badbirdz2.wordpress.com

Photos: 
http://www.flickr.com/photos/woodcreeper






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[nfc-l] warbler song comparison

[Jeff Wells]

Not really about nocturnal sounds but I did a little essay comparing
songs and showing sonograms of Yellow Warblers from Yellowknife, NWT
with Yellow and Chestnut-sided from Maine that some of you may find fun
and interesting at:
http://www.borealbirds.org/blog/?p=186

I haven't tallied calls registered from last night's flight but it was
certainly booming before midnight when I went to bed.

Jeff Wells

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[nfc-l] Good flight in Maine tonight - Sat Oct 10

[Jeff Wells]

Lots of birds moving in nocturnal migration tonight based on call rates here in 
Gardiner. Listening on and off from 9:30-10:30 PM I have had periods with a 
call every 1-3 seconds including Savannah Sparrows, White-throated Sparrows, 
Lincoln's/Swamp Sparrows, Yellow-rumped Warblers, Palm Warblers, Common 
Yellowthroats, and Swainson's Thrushes.
 
Jeff Wells

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[nfc-l] Night flight call station results-Maine-April 1-3

[Jeff Wells]

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

 

 


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RE: [nfc-l] Night flight call station results-Maine-April 1-3

[Jeff Wells]

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

 

 


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[nfc-l] Virginia Rail FOY night migrant

[Jeff Wells]

 

Seems amazingly early to me but on Monday night my automated nocturnal
flight call set-up at my house picked up a Virginia Rail passing over.

 

Jeff Wells

Gardiner, Maine


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RE: [nfc-l] Night flight call station results-Maine-April 1-3

[Jeff Wells]

Maybe but you would think that under certain conditions with low cloud cover, 
etc., that over the years I would have picked them up. Maybe it is one of those 
things that happens more often late and early in the year when I am not 
recording as much…..

 

Jeff

 

From: Michael O'Brien [mailto:tsw...@comcast.net] 
Sent: Tuesday, April 06, 2010 4:29 PM
To: Jeff Wells
Cc: NFC-L@cornell.edu
Subject: 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

 

 


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RE: [nfc-l] mic setup

[Jeff Wells]

I have always used the Rolls MP13 and have found it very reliable and
durable. 

 

Jeff

 

From: bounce-5534450-9874...@list.cornell.edu
[mailto:bounce-5534450-9874...@list.cornell.edu] On Behalf Of David La
Puma
Sent: Tuesday, April 06, 2010 4:32 PM
To: nfc-l@cornell.edu
Subject: [nfc-l] mic setup

 

Hey All-

A group of us in Cape May are going to be building some personal
recording setups in the next week(s). I'm interested in what others are
using in their personal setups, especially the mic element (we're
ordering the Knowles EK3029c, but I noticed that Knowles is making
several new(?) water-proof models), pre-amp (currently I'm going with an
Blue Icicle XLR->USB to go directly into a laptop, but considering the
Rolls MP13 to go directly to my stereo receiver), and recording device
(recorder, computer, etc.; for now I'll be going into my MacBookPro, but
will probably get a dedicated computer... some of us are more interested
in simply having it stream into our home stereo, so we can listen in
real-time).

Anyone want to share their setup, pros/cons, and experiences?

Cheers

David


David A. La Puma, Ph.D.
Postdoctoral Associate - Ecology, behavior and conservation of migratory
birds
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






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

[Jeff Wells]

We have one station running up here in Maine but interestingly although
it picked up good numbers (600+ calls) on the night of the 10th, it
picked up more calls on the 7th (752) and also 600+ calls on the 2nd.

 

Jeff Wells

 

From: bounce-6309122-9874...@list.cornell.edu
[mailto:bounce-6309122-9874...@list.cornell.edu] On Behalf Of Mike
Powers
Sent: Wednesday, September 15, 2010 11:06 PM
To: Benjamin Van Doren
Cc: David La Puma; Bill Evans; NFC-L@cornell.edu
Subject: Re: [nfc-l] reflections on a monumental nocturnal migration

 

Hi all,

Ditto (almost) to what Benjamin wrote: we (Andrew Farnsworth, Anne
Klingensmith, and I) have several microphones out in the Ithaca area
hope to analyze the night of the 10th shortly.  We're looking forward to
comparisons with the various recording stations around the northeast!

Earlier this evening it was quite active in the southern tier of NY,
with a good flight of thrushes:  mostly Veery followed by Swainson's
Thrush with a couple of Gray-cheeked as well.

Cheers,
Mike

--
Mike Powers
Horseheads, NY



On Wed, Sep 15, 2010 at 9:21 PM, Benjamin Van Doren
 wrote:

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 th

[nfc-l] pine siskins at night?

[Jeff Wells]

Some colleagues and I are finalizing a very short paper on our detection
of apparent nocturnal migration in Pine Siskins in Oct 2008. One of the
reviewers suggested we ask other researchers if they have any
unpublished examples of Pine Siskin flight calls recorded at night which
we could mention on the paper.

 

Anyone have any experience with recording or hearing Pine Siskins at
night?

 

Jeff 

 

Jeff Wells


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[nfc-l] rail overhead

[Jeff Wells]

A few days ago I had a Virginia Rail go over my house in Maine around
11:30 PM. Did the "kidick-kidick" call twice over a span of a minute or
so moving south. 

 

Jeff

 

From: bounce-37881217-12790...@list.cornell.edu
[mailto:bounce-37881217-12790...@list.cornell.edu] On Behalf Of Michael
Lanzone
Sent: Tuesday, August 02, 2011 11:52 AM
To: Nocturnal Flight Call ListServe
Subject: [nfc-l] "fall" migration

 

Hi all,

 

Those of us in the east, although it seems a bit to early yet, its not
to early to be listening for nocturnal flight calls. For the last 2-3
weeks I have had many decent nights of overflight. I have not listened
for long, but on several nights I had many birds per minute. Some of the
species included Yellow Warbler, Louisiana Waterthrush, Chestnut-sided
Warbler, Hooded Warbler, American Redstart, Chipping Sparrows,
Grasshopper Sparrow, Henslows Sparrow, Savannah Sparrow, Indigo Bunting,
and Veery. Most numerous calls were from Yellow Warblers followed by
Canada Warbler and then Chipping Sparrow.

 

Good listening,

Mike

 

Michael Lanzone
mlanz...@gmail.com

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[nfc-l] Hermit Thrush flight calls on ground

[Jeff Wells]

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


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Re: [nfc-l] Hermit Thrush flight calls on ground

[Jeff Wells]

Yes, and remember Bill's classic thrush tape in which he had, if I am 
remembering correctly, both Wood Thrush and Bicknell's Thrush singing on the 
breeding grounds and interspersing the flight calls in the song? That was such 
a great tape!

Last year when I was in northern Quebec I had Gray-cheeked doing this as well 
but I could never record it. 

Fun stuff!

Jeff

Jeff Wells
International Boreal Conservation Campaign
Boreal Songbird Initiative


On Oct 11, 2011, at 9:46 PM, "Kenneth Victor Rosenberg"  
wrote:

> Jeff et al.
> 
> I have fairly frequently heard Hermit Thrush giving it's nfc on the ground at 
> first light -- especially in early winter, often interspersed with "chuck" 
> notes just as you describe. I have also heard both Swainson's and Wood Thrush 
> giving what sounds like the nfc interspersed with song. I believe that this 
> is one of the ways that Bill Evans first figured out all the thrush calls -- 
> by matching them to calls heard in various contexts during the day and 
> visually confirmed.
> 
> KEN
> 
> 
> Ken Rosenberg
> Conservation Science Program
> Cornell Lab of Ornithology
> 607-254-2412
> 607-342-4594 (cell)
> k...@cornell.edu
> 
> On Oct 11, 2011, at 5:09 PM, Jeff Wells wrote:
> 
>> 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
>> --
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> 

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[nfc-l] sounds of morning fallout in Maine

[Jeff Wells]

This morning at 5 when I stepped out of our house in Gardiner, Maine 
(south-central Maine about 30 miles from coast) in the dark, the sky was filled 
with flight calls of birds (low ceiling, intermittent light showers). Using my 
iPhone I made a 5 minute recording of what it sounded like if anyone is 
interested (link below). Sadly, I was not running my audio station

Haven't gone through really carefully but includes Hermit Thrushes, Swainson's 
Thrushes, Savannah Sparrows, Yellow-rumped Warblers, White-throated Sparrows, a 
Common Yellowthroat, perhaps a couple of Swamp/Lincoln's Sparrows and I'm sure 
some other things too.

http://soundcloud.com/birdwells/sounds-from-thursday-morning-1

Jeff Wells


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[nfc-l] bizarre acoustic experience

[Jeff Wells]

Sorry if this is kind of off topic but a week ago we came home (Gardiner, 
Maine)  from somewhere around 9:00 PM and were treated to one of the most 
bizarre acoustic experiences I have had for a long time. I could hear migrating 
birds overheard with the ubiquitous cricket chorus but layered on that was the 
neighbor's dog howling like a wolf, the soft crackling of another neighbor's 
backyard fire, and the sounds of the local high school football game including 
the booming announcer and sometimes the high school band and drums and wild 
cheering.

I had to do a couple of recordings just to document it as I doubt it will ever 
come together like that again. It was not a heavy nocturnal calling night but 
if you can block out all the other sounds you may hear some of the birds too.

Here are the two recordings I made if anyone is interested and sorry for it not 
being spot-on target for the listserve...

http://soundcloud.com/birdwells/sounds-from-friday-evening-7

http://soundcloud.com/birdwells/sounds-from-friday-evening-6

Jeff

Jeff Wells

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RE: [nfc-l] Nocturnal finch calls

[Jeff Wells]

I am happy to provide pdfs of our recent Wilson Bulletin short paper 
documenting nocturnally migrating Pine Siskins to anyone who is interested.

Jeff Wells


From: bounce-69354254-9874...@list.cornell.edu 
[mailto:bounce-69354254-9874...@list.cornell.edu] On Behalf Of pjd...@aol.com
Sent: Monday, October 15, 2012 8:02 PM
To: nfc-l@cornell.edu
Subject: [nfc-l] Nocturnal finch calls

Friday night I recorded Pine Siskins several times between 3 and 5.30 am and 
Purple Finch at 5.20am. I was surprised to hear these supposed diurnal migrants 
so early. Something else of interest was Hermit Thrushes flying over with chup 
calls on two occasions.

Paul Driver
Elkins Park, PA
pjdeye.blogspot.com
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Re: [nfc-l] Chipping Sparrows, eastern Boulder County, Colorado

[Jeff Wells]

And I heard a Wood Thrush overhead around 10 PM a few nights ago here in 
Gardiner, Maine

Jeff Wells

Sent from my iPhone

On Jul 20, 2013, at 4:44 AM, "Ted Floyd" 
mailto:tfl...@aba.org>> wrote:

Hello, everybody.

A quick check-in here from somewhere other than the Cayuga Basin...  :-)

Chipping Sparrows are moving over Lafayette, eastern Boulder County, USA, in 
the 2am hour right now, Saturday, July 20th. We believe that these are birds 
bailing on their mountain breeding grounds for literally greener pastures in 
eastern Colorado and western Kansas, where they molt. Regardless, it's an 
annual phenomenon, beginning in mid-July (first nighttime detection this year 
for me was July 16th), in the night skies over the Denver metro area, and it's 
fascinating to witness.

Ted Floyd
tfl...@aba.org<mailto:tfl...@aba.org>
Lafayette, Boulder County, Colorado
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[nfc-l] Florida nocturnal flight call activity

[Jeff Wells]

Now that I see a little renewed activity on the list I will give a delayed 
mention of the fact that I heard about two warbler calls a minute for about 15 
minutes around midnight on April 19th in interior west central Florida 
(Bushnell, Sumter County). In past visits in that area I have only heard the 
occasion nocturnal flight call so I was interested to hear more sustained 
calling that night although I think a front had just passed so things may have 
just opened up. Seemed like a lot of Black-and-whites, some redstarts, palms, 
black-throated blues…

Calling rate died down after that initial 15 minutes.

I had stayed up late to watch a West Coast NBA playoff game so to the 
opportunity at half time I think, to step outside and listen for a bit.

Jeff Wells

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[nfc-l] recording of Swainson's Thrush nocturnal flight calls before song on Manitoba breeding grounds

[Jeff Wells]

In case anyone interested:

https://soundcloud.com/birdwells/swainsons-thrush-nocturnal-call-notes-before-song-poplar-river-manitoba-s4a01761-20160608-050002

Jeff Wells


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RE: [nfc-l] recording of Swainson's Thrush nocturnal flight calls before song on Manitoba breeding grounds

[Jeff Wells]

Earlier in July I was on a small island off the Maine coast and the Swainson's 
Thrushes there were giving the nocturnal call note like crazy!

Jeff

From: John Kearney [mailto:john.kear...@ns.sympatico.ca]
Sent: Sunday, August 14, 2016 9:55 AM
To: Jeff Wells; 'NFC-L'
Subject: RE: [nfc-l] recording of Swainson's Thrush nocturnal flight calls 
before song on Manitoba breeding grounds

Hi Jeff and all,
Quite interesting. I've heard this in Nova Scotia as well, especially near the 
end of the breeding season.
John


John F. Kearney
Carleton, Nova Scotia
CANADA


From: 
bounce-120683369-28417...@list.cornell.edu<mailto:bounce-120683369-28417...@list.cornell.edu>
 [mailto:bounce-120683369-28417...@list.cornell.edu] On Behalf Of Jeff Wells
Sent: August-11-16 15:08
To: NFC-L mailto:nf...@list.cornell.edu>>
Subject: [nfc-l] recording of Swainson's Thrush nocturnal flight calls before 
song on Manitoba breeding grounds


In case anyone interested:

https://soundcloud.com/birdwells/swainsons-thrush-nocturnal-call-notes-before-song-poplar-river-manitoba-s4a01761-20160608-050002

Jeff Wells

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[nfc-l] more on nightly flight call timing variation

[Jeff Wells]

Another undergraduate at the time from Bates College named Mike Watson did some 
work for his honors thesis using data from three of my recording units run 
simultaneously here in Maine all within a few miles of each other.

Attached is one figure showing the nightly variation over three October nights.

Jeff Wells


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[nfc-l] Species comp variation

[Jeff Wells]

This is another graph from Mike's honors thesis showing difference in thrush 
calls detected at three close recording stations on an October night here in 
Maine.

Jeff Wells



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> 

[nfc-l] migration technologies overview

[Jeff Wells]

Despite the sound of the title, this new report provides an overview of current 
migration research technologies and may be of interest to those on this 
listserve:

http://www.borealbirds.org/announcements/charting-healthy-future-birds

Jeff Wells




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[nfc-l] Manitoba night migrants

[Jeff Wells]

Just listened for a few minutes from the balcony of my hotel room in Gimli, 
Manitoba at about 10:15 PM local time. Above the sound of someone playing 
Rolling Stones music somewhere on the street I heard a number of sparrows (some 
White-throated), some Yellow-rumped Warblers, a Palm Warbler, and a flock of 
Canada Geese. Probably lots more but I am too tired to keep listening.
Jeff Wells


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RE: [nfc-l] I think it is sora

[Jeff Wells]

I had one in Maine two nights ago but was not recording at the time.

Jeff Wells
Gardiner, ME

From: bounce-2483089-53237...@mm.list.cornell.edu 
 On Behalf Of Larry Clarfeld
Sent: Friday, May 4, 2018 12:43 PM
To: Night Flight Call Discussions 
Subject: Re: [nfc-l] I think it is sora

I guess Soras are on the move! I had one in Vermont as well:
https://ebird.org/vt/view/checklist/S45236251

Cheers,
Larry Clarfeld
Colchester, VT

On Thu, May 3, 2018 at 8:24 PM, Meena Madhav Haribal 
mailto:m...@cornell.edu>> wrote:

Yesterday I recorded this piece using thrush detector. I think it is Sora.

Anyone has any other ideas?






Meena Haribal
Ithaca NY 14850
42.429007,-76.47111

http://meenaharibal.blogspot.com/
Ithaca area moths: https://plus.google.com/118047473426099383469/posts
Dragonfly book sample pages:
https://drive.google.com/open?id=0B1ngrZelDNo5QnFDMl9BdVNlLXc



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RE: [nfc-l] NFCs in Caroline

[Jeff Wells]

Glad to see you guys out west are catching up with us. ;.)

 

I remember the nocturnal field trips Bill Evans used to do in Ithaca
back in the 1990's..though Ithaca has always been an anomaly
everywhere!

 

The crickets are in high gear around here in Maine making use of
automatic detectors pretty tough.

 

Jeff

 

From: bounce-4165846-9874...@list.cornell.edu
[mailto:bounce-4165846-9874...@list.cornell.edu] On Behalf Of Ted Floyd
Sent: Wednesday, August 12, 2009 1:30 PM
To: Michael Lanzone; Steve Kelling
Cc: nfc-l@cornell.edu
Subject: RE: [nfc-l] NFCs in Caroline

 

And last night was just about our *slowest* thus far this season...  :-(

 

Eight field trip participants (yes, we really do nocturnal migration
field trips in Colorado...) heard no migrants at all between 4:15 and
5:00 a.m. MDT, Wednesday, 12 August 2009. Location: Greenlee Preserve,
Boulder County, Colorado. (A little flock of Chipping Sparrows pulsed
over at 5:22; not sure if they were wrapping up overnight migration, or
just getting going in the dawn's early light, or what.) A south wind
overnight was surely to blame. Nice meteors, by the way, despite the
moon. Brief trip report at
http://www.birdingonthe.net/mailinglists/COLO.html#1250080203

 

The "day" before, Tuesday, 11 August 2009, was a little better, with no
wind to speak of overnight. Along with Chipping Sparrows, there was one
of those birds that I think is a Brewer's Sparrow. Despite what I might
have expected a few years ago, Brewer's Sparrow flight calls are
distinct from those of Chipping Sparrows. See attached, 2 sonograms.
Note the distinct "double banding," even triple-banding, plus a
less-symmetrical "upward arch" (sensu Evans & O'Brien); there's more of
a terminal upslur and an introductory downslur. (Sonograms by Nathan
Pieplow, recorded in Colorado.)

 

Back on Sunday, 9 August, my son and I were down in southeastern
Colorado, and "several" (might have been more like "a lot of"--hard to
know) Upland Sandpipers migrated over La Junta, Otero County, in the
middle of the night. The species is considered to be unexpected there,
but maybe migrants are missed. After all, they are expected in fall
migration SSW of La Junta, in New Mexico (or at least they were, when I
lived there 15 years ago), and La Junta lies on a line between there and
the breeding grounds. For additional context, winds were out of the
northeast, with lowering clouds.

 

Meanwhile, south winds are forecast to continue here indefinitely. Well,
when they finally relent, I imagine we'll have a fine few nights of
listening.

 

Best,

Ted

 

 

 



From: bounce-4164608-9667...@list.cornell.edu
[mailto:bounce-4164608-9667...@list.cornell.edu] On Behalf Of Michael
Lanzone

Hi Steve and others,

Last night I think was the best we have had here yet this season, at
least one of our mics was recording 5-10 calls per minute. Early not a
lot though as we had some showers in the area, it picked up later around
11:30pm or so. I am anxious to check our ridge station (on Laurel Mtn)
as radar was ~25dBz there and that often gets a lot more activity than
here with these conditions. It will have to wait till I get back from
AOU though :(


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[nfc-l] tv show on nocturnal migration

[Jeff Wells]

Thought some might find this show I participated in on nocturnal
migration of interest.

 

Link to web stream of Maine Television show on nocturnal bird migration
that aired last week:
http://www.mpbn.net/ProgramsSchedules/LocalPrograms/Television/MaineWatc
h/tabid/477/ctl/ViewItem/mid/2547/ItemId/10769/Default.aspx

 

Also just did a blog entry on some interesting papers talking about
migration as a conservation value that should be the focus of more
conservation efforts which you can see at: www.borealbirds.org/blog

 

Jeff Wells


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[nfc-l] clips from Yellowknife

[Jeff Wells]

Thought you might enjoy these clips I recorded near Yellowknife earlier
in June of a Swainson's Thrush throwing in some nocturnal flight call
notes amidst other morning vocalizations. Will send second clip in
separate email.

 

Jeff Wells


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SWTH nfc2 Yellowknife NWT June 10 2009.mp3
Description: SWTH nfc2 Yellowknife NWT June 10 2009.mp3

FW: [nfc-l] clips from Yellowknife

[Jeff Wells]

There are some other birds in there as well including a loud Lincoln's
Sparrow song with what sounds like it's buzzy call right at the very end
of the clip.

 

Jeff

 

From: bounce-4048168-9874...@list.cornell.edu
[mailto:bounce-4048168-9874...@list.cornell.edu] On Behalf Of Jeff Wells
Sent: Thursday, June 25, 2009 12:28 PM
To: nfc-l@cornell.edu
Subject: [nfc-l] clips from Yellowknife

 

Thought you might enjoy these clips I recorded near Yellowknife earlier
in June of a Swainson's Thrush throwing in some nocturnal flight call
notes amidst other morning vocalizations. Will send second clip in
separate email.

 

Jeff Wells


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