I can attest to the enormous flight in southwestern Pennsylvania this
morning. Still analyzing recordings but as a preview I am up to just shy of
900 Swainson's Thrush calls in the last 30 minutes before civil twilight,
along with 51 Gray-cheeked, 15 Wood Thrush, and <10 Rose-breasted Grosbeak
and Scarlet Tanager. Warblers calls in total are at about 90. Still
analyzing with a long way to go, which will greatly up the totals of
Swainson's and Gray-cheeked judging by what I heard in real time. Later in
the morning I had 15 sp. of warbler at a local migration hotspot.

 

Last night was one of the most impressive flights I've heard here in
suburban and often noise-infested Pittsburgh.

 

Geoff Malosh

 

Geoff Malosh | Editor, Pennsylvania Birds 

450 Amherst Avenue | Moon Township, PA 15108-2654 | 412.735.3128  

[email protected] | http://home.earthlink.net/~pomarine/index.html 

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From: [email protected]
[mailto:[email protected]] On Behalf Of Rudolph
Keller
Sent: Friday, September 19, 2014 3:33 PM
To: Christopher T. Tessaglia-Hymes; Andrew Albright; CAYUGABIRDS-L; NFC-L
Subject: Re: [cayugabirds-l] [nfc-l] Thursday: Night Flight in Northeast

 

Apparently there was a very large flight involving thousands of mostly
thrush calls over western PA last night and around dawn. I think it was much
lighter over eastern PA, as seems often to be the case. At Hawk Mt. in SE
PA, a NE wind of 5-8 mph was enough to rustle leaves and mask calls (only 20
or so heard around 6 am), but I rarely hear many calls on windy nights even
if there are no trees to rustle. The calm night of 9/17 was much better at
Hawk Mt., with over 500 calls in 20 minutes starting at 6 am, most
Swainson's & Wood Thrushes (also lots of Wood Thrushes calling in the woods
after daylight), with 13 Gray-cheek calls thrown in. I also rarely hear
warblers in the dawn descent period, even when I find good numbers of them
in the area after daylight.

Rudy Keller

----- Original Message ----- 

From: Christopher T. Tessaglia-Hymes <mailto:[email protected]>  

To: Andrew Albright <mailto:[email protected]>  ; CAYUGABIRDS-L
<mailto:[email protected]>  ; NFC-L
<mailto:[email protected]>  

Sent: Friday, September 19, 2014 11:12 AM

Subject: Re: [cayugabirds-l] [nfc-l] Thursday: Night Flight in Northeast

 

Andrew, et. al., 

 

I haven't gone through all of my recording data from last night, but I have
certainly observed what you are mentioning: significant thrush vocalizations
in the minutes immediately leading up to the start of civil twilight. Often,
after midnight, there are very few warbler calls and equally few during the
thrush descent. Herons and bitterns seem to be vocal in the first three or
four hours of the night, and then wane after that. I'm not sure what the
cause or purpose is for this decrease in vocal activity in warblers after
midnight. 

 

Last night, there were hundreds of Swainson's Thrushes and Rose-breasted
Grosbeaks calling, tens of Gray-cheeked Thrushes with a single potential
Bicknell's Thrush candidate, a good handful of Wood Thrushes and Veeries in
the mix. No Hermit Thrushes. A couple of Scarlet Tanager candidates. At
least one American Bittern, two probable Least Bitterns (I'd like to discuss
this later on NFC-L) and several Green Herons. Two American Woodcocks flew
by shortly after the start of civil twilight, one stopping the wing
twittering long enough to utter some very soft and gentle buzzy squeaks that
I've never heard before, then continuing with the wing twittering.

 

Also heard overnight were Ovenbirds, Black-throated Blue Warbler,
Chestnut-sided Warblers, Savannah Sparrows, and many many unidentified
interesting calls requiring much time I don't have right now to compare and
evaluate. Great Horned Owl and a local rooster were calling early this
morning. A couple nights ago, I saw one of our Flying Squirrels feeding on
the squirrel seed cakes out front, after returning home late from work.

 

Last night was one of the more notable nights this migration season.

 

Good night listening and birding!

 

Sincerely,

Chris T-H

 

 

 

 

On Sep 19, 2014, at 10:33 AM, Andrew Albright <[email protected]>
wrote:





Chris and Ken - thanks for the heads up.  In upstate NY do you get more
thrush calls in the 1-2 hrs before day break?    We seem to down in the
Mid-Atlantic (and fewer warblers).

 

Here's my ebird report from listening this morning (29 minutes starting at
5:38). Is this the type of distribution you heard?

 

Anyone else have data from last night/this morning?

 



2


Veery


 



6


Gray-cheeked Thrush


 



46


Swainson's Thrush


 



11


Wood Thrush


 



2


thrush sp.


 



6


warbler sp.


 



2


Chipping Sparrow


 



1


Swamp Sparrow


 

 


 

On Fri, Sep 19, 2014 at 12:23 AM, Kenneth V. Rosenberg <[email protected]>
wrote:

Just had about 200 thrushes (mostly Swainsons but also many Gray-cheeked and
Wood Thrush) over my house in Northeast Ithaca in a 45 min count - also 12
Green Herons and an Am Bittern

 

Ken

Sent from my iPhone


On Sep 18, 2014, at 9:41 PM, "Christopher T. Tessaglia-Hymes"
<[email protected]> wrote:

Just a heads-up about a potential push of birds into this area overnight
tonight... 

 

Begin forwarded message:





From: "Christopher T. Tessaglia-Hymes" <[email protected]>

Subject: [nfc-l] Thursday: Night Flight in Northeast

Date: September 18, 2014 at 9:38:18 PM EDT

To: NFC-L <[email protected]>

Reply-To: "Christopher T. Tessaglia-Hymes" <[email protected]>

 

There is currently a fairly heavy liftoff going on in the Northeast and
surrounding regions. The high pressure system situated North of Lake Ontario
could make for a good push of birds down into the Northeast overnight
tonight. 

 

If you can, keep your ears skyward!

 

Sincerely,

Chris T-H

 

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Christopher T. Tessaglia-Hymes
Field Applications Engineer
Bioacoustics Research Program, Cornell Lab of Ornithology
159 Sapsucker Woods Road, Ithaca, New York 14850
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Berks County

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