ID-FRONTIERS for May 25-31, 2008

Messages are displayed in the order they were received.  Subject  From  Date   Time   Orange Tanager at Red Rock SP, Sedona   Brian Gatlin    Tue, 27 May 2008   7:39pm   Oporornis warbler   =?ISO-8859-1?Q?Greg_   Wed, 28 May 2008   6:49am   Re: Oporornis warbler   =?ISO-8859-1?Q?Greg_   Thu, 29 May 2008   8:39am   Re: Oporornis warbler   greatgrayowl(AT)AOL.COM   Fri, 30 May 2008   7:31am   Dowitcher   Robert Hughes    Sat, 31 May 2008   1:09pm   Re: Dowitcher   Juan Salas    Sat, 31 May 2008   4:30pm

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Subject: Orange Tanager at Red Rock SP, Sedona
From: Brian Gatlin <brianpgatlin(AT)HOTMAIL.COM>
Date: 27 May 2008 7:39pm

Hello all (AZ/NM list and ID-frontierspeople),

On 5/26 and 5/27/08 I saw and photographed an orange tanager at Red Rock State
Park, in Sedona, AZ.  This is the same bird that I saw 2 years ago, but the
photos are better...

My initial impression 2 years ago was that this bird was a Western X
Flame-colored.  However, based on extensive viewing of field marks and behavior,
 I now feel that this bird is likely a Western X Summer.  It shows clearly, I
believe, Western traits in the plumage.  The size of the bill, and its close
association with female Summer Tanagers, I think, suggests Summer as the other
parent.

I am not aware of any previous records of such a cross.  

For the sake of brevity I won't go into all the details here.  Discussion of
field marks and behavior, photos, and link to the initial discussion 2 years ago
 are all posted on the Northern Arizona Audubon forum,

here (5/26):  http://www.nazas.org/sightings/viewthread.php?tid=2723

and here (5/27):  http://www.nazas.org/sightings/viewthread.php?tid=2725

I'd appreciate any input.  It's certainly a unique and beautiful bird....

Brian Gatlin
Grand Canyon, AZ

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Subject: Oporornis warbler
From: =?ISO-8859-1?Q?Greg_Neise?= <greg(AT)LPZOO.ORG>
Date: 28 May 2008 6:49am

Hi all, 

Nolan Lameka photographed an interesting female Oporornis warbler at
Montrose last week that is generating some discussion. View the photos here:

http://www.ilbirds.com/index.php?topic=6379.0

As always, comments and direction are greatly appreciated.

Cheers,

-greg neise

- - - - - - - - - - - - - - - - - - - - - - - -
Greg Neise
Staff Photographer
Manager of Web and Graphics Technology
Lincoln Park Zoo
2001 N. Clark St.
Chicago, IL 60614
312-742-2240
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Subject: Re: Oporornis warbler
From: =?ISO-8859-1?Q?Greg_Neise?= <greg(AT)LPZOO.ORG>
Date: 29 May 2008 8:39am

The IBF thread concerning the Oporornis warbler at Montrose Harbor in
Chicago has certainly generated a lot of discussion, and it seems that the
field is split on whether its a mourning or Connecticut...that
topic/pictures and responses can be viewed here (thanks very much to
everyone who responded):

http://www.ilbirds.com/index.php?topic=6379.0

...but yesterday, Bill Rudden photographed ANOTHER similarly confusing
Oporornis warbler in the St. Louis area:

http://www.ilbirds.com/index.php?topic=6510.0

This bird appears to have "MacGillivray's-type" eye arcs. As usual any
comments/suggestions/direction are greatly appeciated.

Cheers,

-greg neise

ps: if you do comment on this bird, please indicate if it is OK to post your
comments on IBF also.

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Subject: Re: Oporornis warbler
From: greatgrayowl(AT)AOL.COM
Date: 30 May 2008 7:31am

----INCLUDING text/plain MIME SECTION----

Hi all:

I had a response all written when I noticed Peter Pyle's comment on the Illinois
 site that would have made my comments duplicative.? However, having handled >50
 fall individuals of each species, I whole-heartedly agree with Peter's comments
 -- both birds are Mourning Warblers.? Macs' eye arcs are shorter and never
approach the appearance of complete eye rings, Connecticuts always sport
complete eye rings, and Mournings are incredibly variable.? Of course, two
caveats come with this blanket statement, 1) in biology, 'never' and 'always'
are very dangerous words (they can cause the eating-foot syndrome) and 2) a
hybrid Mourning x MacGillivray's might look like anything.

Sincerely,

Tony Leukering
Brighton, CO

-----Original Message-----
From: Greg Neise <greg(AT)LPZOO.ORG>
To: BIRDWG01(AT)LISTSERV.ARIZONA.EDU
Sent: Thu, 29 May 2008 9:39 am
Subject: Re: [BIRDWG01] Oporornis warbler

The IBF thread concerning the Oporornis warbler at Montrose Harbor in
Chicago has certainly generated a lot of discussion, and it seems that the
field is split on whether its a mourning or Connecticut...that
topic/pictures and responses can be viewed here (thanks very much to
everyone who responded):

http://www.ilbirds.com/index.php?topic=6379.0

...but yesterday, Bill Rudden photographed ANOTHER similarly confusing
Oporornis warbler in the St. Louis area:

http://www.ilbirds.com/index.php?topic=6510.0

This bird appears to have "MacGillivray's-type" eye arcs. As usual any
comments/suggestions/direction are greatly appeciated.

Cheers,

-greg neise

ps: if you do comment on this bird, please indicate if it is OK to post your
comments on IBF also.

Join or Leave BIRDWG01: http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01

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Subject: Dowitcher
From: Robert Hughes <rhughes.enteract(AT)RCN.COM>
Date: 31 May 2008 1:09pm

I'm curious what people think of this dowitcher.

http://www.ilbirds.com/index.php?PHPSESSID=602f526146cf644230433a669647c819&topic=6563.0

Robert D. Hughes
Chicago, Illinois 

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Subject: Re: Dowitcher
From: Juan Salas <js472(AT)NYU.EDU>
Date: 31 May 2008 4:30pm

It looks like a breeding Short-billed griseus to me. (Check The Shorebird Guide,
 O'Brien, Crossley and Karlson, 2006. p.198, image 13.
Let me know if you don't have access to the book.

Juan Salas
Brooklyn, NY

----- Original Message -----
From: Robert Hughes <rhughes.enteract(AT)RCN.COM>
Date: Saturday, May 31, 2008 4:09 pm
Subject: [BIRDWG01] Dowitcher
To: BIRDWG01(AT)LISTSERV.ARIZONA.EDU

> I'm curious what people think of this dowitcher.
>  
>
http://www.ilbirds.com/index.php?PHPSESSID=602f526146cf644230433a669647c819&topic=6563.0
>  
>  Robert D. Hughes
>  Chicago, Illinois 
>  
>  
>  Join or Leave BIRDWG01:
http://listserv.arizona.edu/cgi-bin/wa?SUBED1=birdwg01
>  
>  Archives: http://listserv.arizona.edu/archives/birdwg01.html
>  

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