Re: FW: [nysbirds-l] New Empidonax identification tip

[Anders Peltomaa]

Thanks for the reminder Shai,

Here is a link to a PDF of the article that Joe referenced.

https://biology.unm.edu/Witt/pub_files/Baumann-etal-2014-JFO-yellow-Empid-ID-jofo12078.pdf

good birding,

Anders Peltomaa
Manhattan

On Fri, Dec 9, 2016 at 9:12 AM, Shaibal Mitra 
wrote:

> In a really nice example of how this list serves as institutional memory
> for our community, Dave Klauber just reminded me of this very relevant post
> from Joe DiCostanzo, from December 2014. It details the foundation of the
> wing pattern feature mentioned in the Whatbird discussions, and I would
> agree that this feature also favors Yellow-bellied Flycatcher.
>
> It's not fun to admit this, but the things I learn nowadays don't stick
> with me to nearly the same degree as the things I learned before, say 2000!
> So n.b. to those whose brains are still limber: don't put off learning
> until later, front-load the data hoarding as much as possible!
> 
> From: bounce-118614530-3714...@list.cornell.edu  list.cornell.edu> on behalf of Joe DiCostanzo 
> Sent: Wednesday, December 10, 2014 7:24 PM
> To: NYSBirds
> Subject: [nysbirds-l] New Empidonax identification tip
>
>
> Just got the current issue of the Journal of Field Ornithology (vol. 85,
> no. 4, December 2014). I figure this is not a journal that most birders
> check for ID articles so I thought I would draw attention to an article in
> it: “Simple technique for distinguishing Yellow-bellied Flycatchers from
> Cordilleran and Pacific-slope flycatchers by M. J. Baumann, S. C. Galen, N.
> D. Pederson and C. C. Witt. Pp. 391-396. Anyone interested should read the
> article for all the details, many of which involve measurements that can
> only be done in the hand, but there is one character that can be used to
> distinguish Yellow-bellied Flycatcher from “Western Flycatcher” (the
> complex composed of Cordilleran and Pacific-slope flys.). It involves the
> space on the folded wing between the lower wing bar and the start of the
> pale fringes on the secondaries. This space is much larger in the
> Yellow-bellied than in the “Western”. I pulled out a few field guides from
> my bookshelf to see if it was distinguishable in published illustrations. I
> found it was apparent in the photos in Kenn Kaufman’s Birds of North
> America (at least in the first edition that I have). It was also obvious in
> Dave Sibley’s paintings of these species in his Second Edition of the
> Sibley Guide to Birds (I didn’t check the first edition). The authors of
> the Journal of Field Ornithology article tested their technique on 113
> museum specimens that had been identified based on locality. They found
> their technique correctly place 112 of the specimens. One specimen labeled
> as a Yellow-bellied Flycatcher that had been collected in Illinois was
> identified as a “Western Flycatcher” by their technique. Amazingly, when
> the mtDNA of this specimen was examined, the specimen proved to be a
> “Western Flycatcher”, the first for the complex for Illinois!
>
>
>
> Distinguishing a Yellow-bellied Fly from a “Western Fly” has not come up
> yet in New York, but hey, you never know.
>
>
>
> Joe DiCostanzo
>
> www.greatgullisland.org
>
> www.inwoodbirder.blogspot.com
>
> [http://3.bp.blogspot.com/-zlSALCVoYnM/U0SFqj6uWfI/
> AWQ/xYjr3pf15r0/s80/Joe.jpg] >
>
> Inwood Birder
> www.inwoodbirder.blogspot.com
> A very pretty morning in the Ramble for my Thursday morning AMNH bird walk
> group. It would have been an even prettier morning if there had been more
> birds around!
>
>
>
>
>
> --
> NYSbirds-L List Info:
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> Rules and Information
> Subscribe, Configuration and Leave NYSbirdsSubscribeConfigurationLeave.htm>
> Archives:
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> Please submit your observations to eBird!
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>
> --
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>
> Please submit your observations to eBird:
> http://ebird.org/content/ebird/
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Re: FW: [nysbirds-l] New Empidonax identification tip

[Anders Peltomaa]

Thanks for the reminder Shai,

Here is a link to a PDF of the article that Joe referenced.

https://biology.unm.edu/Witt/pub_files/Baumann-etal-2014-JFO-yellow-Empid-ID-jofo12078.pdf

good birding,

Anders Peltomaa
Manhattan

On Fri, Dec 9, 2016 at 9:12 AM, Shaibal Mitra 
wrote:

> In a really nice example of how this list serves as institutional memory
> for our community, Dave Klauber just reminded me of this very relevant post
> from Joe DiCostanzo, from December 2014. It details the foundation of the
> wing pattern feature mentioned in the Whatbird discussions, and I would
> agree that this feature also favors Yellow-bellied Flycatcher.
>
> It's not fun to admit this, but the things I learn nowadays don't stick
> with me to nearly the same degree as the things I learned before, say 2000!
> So n.b. to those whose brains are still limber: don't put off learning
> until later, front-load the data hoarding as much as possible!
> 
> From: bounce-118614530-3714...@list.cornell.edu  list.cornell.edu> on behalf of Joe DiCostanzo 
> Sent: Wednesday, December 10, 2014 7:24 PM
> To: NYSBirds
> Subject: [nysbirds-l] New Empidonax identification tip
>
>
> Just got the current issue of the Journal of Field Ornithology (vol. 85,
> no. 4, December 2014). I figure this is not a journal that most birders
> check for ID articles so I thought I would draw attention to an article in
> it: “Simple technique for distinguishing Yellow-bellied Flycatchers from
> Cordilleran and Pacific-slope flycatchers by M. J. Baumann, S. C. Galen, N.
> D. Pederson and C. C. Witt. Pp. 391-396. Anyone interested should read the
> article for all the details, many of which involve measurements that can
> only be done in the hand, but there is one character that can be used to
> distinguish Yellow-bellied Flycatcher from “Western Flycatcher” (the
> complex composed of Cordilleran and Pacific-slope flys.). It involves the
> space on the folded wing between the lower wing bar and the start of the
> pale fringes on the secondaries. This space is much larger in the
> Yellow-bellied than in the “Western”. I pulled out a few field guides from
> my bookshelf to see if it was distinguishable in published illustrations. I
> found it was apparent in the photos in Kenn Kaufman’s Birds of North
> America (at least in the first edition that I have). It was also obvious in
> Dave Sibley’s paintings of these species in his Second Edition of the
> Sibley Guide to Birds (I didn’t check the first edition). The authors of
> the Journal of Field Ornithology article tested their technique on 113
> museum specimens that had been identified based on locality. They found
> their technique correctly place 112 of the specimens. One specimen labeled
> as a Yellow-bellied Flycatcher that had been collected in Illinois was
> identified as a “Western Flycatcher” by their technique. Amazingly, when
> the mtDNA of this specimen was examined, the specimen proved to be a
> “Western Flycatcher”, the first for the complex for Illinois!
>
>
>
> Distinguishing a Yellow-bellied Fly from a “Western Fly” has not come up
> yet in New York, but hey, you never know.
>
>
>
> Joe DiCostanzo
>
> www.greatgullisland.org
>
> www.inwoodbirder.blogspot.com
>
> [http://3.bp.blogspot.com/-zlSALCVoYnM/U0SFqj6uWfI/
> AWQ/xYjr3pf15r0/s80/Joe.jpg] >
>
> Inwood Birder
> www.inwoodbirder.blogspot.com
> A very pretty morning in the Ramble for my Thursday morning AMNH bird walk
> group. It would have been an even prettier morning if there had been more
> birds around!
>
>
>
>
>
> --
> NYSbirds-L List Info:
> Welcome and Basics
> Rules and Information
> Subscribe, Configuration and Leave NYSbirdsSubscribeConfigurationLeave.htm>
> Archives:
> The Mail Archive cornell.edu/maillist.html>
> Surfbirds
> BirdingOnThe.Net
> Please submit your observations to eBird!
> --
>
> --
>
> NYSbirds-L List Info:
> http://www.NortheastBirding.com/NYSbirdsWELCOME
> http://www.NortheastBirding.com/NYSbirdsRULES
> http://www.NortheastBirding.com/NYSbirdsSubscribeConfigurationLeave.htm
>
> ARCHIVES:
> 1) http://www.mail-archive.com/nysbirds-l@cornell.edu/maillist.html
> 2) http://www.surfbirds.com/birdingmail/Group/NYSBirds-L
> 3) http://birdingonthe.net/mailinglists/NYSB.html
>
> Please submit your observations to eBird:
> http://ebird.org/content/ebird/
>
> --
>
>

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FW: [nysbirds-l] New Empidonax identification tip

[Shaibal Mitra]

In a really nice example of how this list serves as institutional memory for 
our community, Dave Klauber just reminded me of this very relevant post from 
Joe DiCostanzo, from December 2014. It details the foundation of the wing 
pattern feature mentioned in the Whatbird discussions, and I would agree that 
this feature also favors Yellow-bellied Flycatcher.

It's not fun to admit this, but the things I learn nowadays don't stick with me 
to nearly the same degree as the things I learned before, say 2000! So n.b. to 
those whose brains are still limber: don't put off learning until later, 
front-load the data hoarding as much as possible!

From: bounce-118614530-3714...@list.cornell.edu 
 on behalf of Joe DiCostanzo 

Sent: Wednesday, December 10, 2014 7:24 PM
To: NYSBirds
Subject: [nysbirds-l] New Empidonax identification tip


Just got the current issue of the Journal of Field Ornithology (vol. 85, no. 4, 
December 2014). I figure this is not a journal that most birders check for ID 
articles so I thought I would draw attention to an article in it: “Simple 
technique for distinguishing Yellow-bellied Flycatchers from Cordilleran and 
Pacific-slope flycatchers by M. J. Baumann, S. C. Galen, N. D. Pederson and C. 
C. Witt. Pp. 391-396. Anyone interested should read the article for all the 
details, many of which involve measurements that can only be done in the hand, 
but there is one character that can be used to distinguish Yellow-bellied 
Flycatcher from “Western Flycatcher” (the complex composed of Cordilleran and 
Pacific-slope flys.). It involves the space on the folded wing between the 
lower wing bar and the start of the pale fringes on the secondaries. This space 
is much larger in the Yellow-bellied than in the “Western”. I pulled out a few 
field guides from my bookshelf to see if it was distinguishable in published 
illustrations. I found it was apparent in the photos in Kenn Kaufman’s Birds of 
North America (at least in the first edition that I have). It was also obvious 
in Dave Sibley’s paintings of these species in his Second Edition of the Sibley 
Guide to Birds (I didn’t check the first edition). The authors of the Journal 
of Field Ornithology article tested their technique on 113 museum specimens 
that had been identified based on locality. They found their technique 
correctly place 112 of the specimens. One specimen labeled as a Yellow-bellied 
Flycatcher that had been collected in Illinois was identified as a “Western 
Flycatcher” by their technique. Amazingly, when the mtDNA of this specimen was 
examined, the specimen proved to be a “Western Flycatcher”, the first for the 
complex for Illinois!



Distinguishing a Yellow-bellied Fly from a “Western Fly” has not come up yet in 
New York, but hey, you never know.



Joe DiCostanzo

www.greatgullisland.org

www.inwoodbirder.blogspot.com

[http://3.bp.blogspot.com/-zlSALCVoYnM/U0SFqj6uWfI/AWQ/xYjr3pf15r0/s80/Joe.jpg]

Inwood Birder
www.inwoodbirder.blogspot.com
A very pretty morning in the Ramble for my Thursday morning AMNH bird walk 
group. It would have been an even prettier morning if there had been more birds 
around!





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FW: [nysbirds-l] New Empidonax identification tip

[Shaibal Mitra]

In a really nice example of how this list serves as institutional memory for 
our community, Dave Klauber just reminded me of this very relevant post from 
Joe DiCostanzo, from December 2014. It details the foundation of the wing 
pattern feature mentioned in the Whatbird discussions, and I would agree that 
this feature also favors Yellow-bellied Flycatcher.

It's not fun to admit this, but the things I learn nowadays don't stick with me 
to nearly the same degree as the things I learned before, say 2000! So n.b. to 
those whose brains are still limber: don't put off learning until later, 
front-load the data hoarding as much as possible!

From: bounce-118614530-3714...@list.cornell.edu 
 on behalf of Joe DiCostanzo 

Sent: Wednesday, December 10, 2014 7:24 PM
To: NYSBirds
Subject: [nysbirds-l] New Empidonax identification tip


Just got the current issue of the Journal of Field Ornithology (vol. 85, no. 4, 
December 2014). I figure this is not a journal that most birders check for ID 
articles so I thought I would draw attention to an article in it: “Simple 
technique for distinguishing Yellow-bellied Flycatchers from Cordilleran and 
Pacific-slope flycatchers by M. J. Baumann, S. C. Galen, N. D. Pederson and C. 
C. Witt. Pp. 391-396. Anyone interested should read the article for all the 
details, many of which involve measurements that can only be done in the hand, 
but there is one character that can be used to distinguish Yellow-bellied 
Flycatcher from “Western Flycatcher” (the complex composed of Cordilleran and 
Pacific-slope flys.). It involves the space on the folded wing between the 
lower wing bar and the start of the pale fringes on the secondaries. This space 
is much larger in the Yellow-bellied than in the “Western”. I pulled out a few 
field guides from my bookshelf to see if it was distinguishable in published 
illustrations. I found it was apparent in the photos in Kenn Kaufman’s Birds of 
North America (at least in the first edition that I have). It was also obvious 
in Dave Sibley’s paintings of these species in his Second Edition of the Sibley 
Guide to Birds (I didn’t check the first edition). The authors of the Journal 
of Field Ornithology article tested their technique on 113 museum specimens 
that had been identified based on locality. They found their technique 
correctly place 112 of the specimens. One specimen labeled as a Yellow-bellied 
Flycatcher that had been collected in Illinois was identified as a “Western 
Flycatcher” by their technique. Amazingly, when the mtDNA of this specimen was 
examined, the specimen proved to be a “Western Flycatcher”, the first for the 
complex for Illinois!



Distinguishing a Yellow-bellied Fly from a “Western Fly” has not come up yet in 
New York, but hey, you never know.



Joe DiCostanzo

www.greatgullisland.org

www.inwoodbirder.blogspot.com

[http://3.bp.blogspot.com/-zlSALCVoYnM/U0SFqj6uWfI/AWQ/xYjr3pf15r0/s80/Joe.jpg]

Inwood Birder
www.inwoodbirder.blogspot.com
A very pretty morning in the Ramble for my Thursday morning AMNH bird walk 
group. It would have been an even prettier morning if there had been more birds 
around!





--
NYSbirds-L List Info:
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Rules and Information
Subscribe, Configuration and 
Leave
Archives:
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Archive
Surfbirds
BirdingOnThe.Net
Please submit your observations to eBird!
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