I just did a quick, but pertinent update to my current running feature on
adult Iceland Gull variation, to add a link to a page I posted a year ago.
The first three pictures on that page are of an unusually dark immature
Iceland type gull at Jones Beach - possibly what the Central Park bird would
look like with better photos.   

 

http://www.stevewalternature.com/ , link at bottom of Iceland Gull article.

 

 

Steve Walter

 

From: [email protected]
[mailto:[email protected]] On Behalf Of Joe Hauser
Sent: Tuesday, February 04, 2014 8:57 AM
To: [email protected]
Subject: Re: [ebirdsnyc] Fwd: [nysbirds-l] Kumlien's/Thayer's Gull on CP
Resevoir Sunday

 

Hello,

      As there seems to be some questions on this birds id I posted it to a
website I belong to called whatbird.com.  While I am not qualified to make
any kind of call on this Gull the members there enjoy these kinds of
discussions and maybe it will help with the id.  The discussion thread can
be found at.
http://www.whatbird.com/forum/index.php?/topic/113547-gull-id-from-ny-listse
rv/.

Joe Hauser

 

On Tue, Feb 4, 2014 at 8:40 AM, Andrew Baksh <[email protected]> wrote:

One of the problems I have had with this bird is the uniform instead of two
tone contrast look with the outer primaries expected on a Thayer's.  On the
sleeping photo, although it looks like a bleached looking individual, I
would have a hard time not calling this bird a Thayer's type

 

In flight it gives a different perspective and the primaries seen in flight
does not show as dark.  However, the photos are over exposed and could be
causing some issues here with that so I am not sure.

 

Kumlien's range makes this a tough one to call based on these photos alone
even if the plumage and tail band seems odd.  In addition, the variation in
plumage of Kumlien's makes this even more intriguing and I have seen some
photos from birds upstate this year that look very much like this one.

 

Photos can lie so more documentation is needed on this bird and definitely
worth tracking down. I hope it is refound and better photos presented for
discussion.  Good luck CP birders.  Report these birds!!!  Even if it is an
Iceland Gull, it is post worthy.

Cheers!

 

 


On Feb 3, 2014, at 11:31 PM, Phil Jeffrey <[email protected]> wrote:

Real shame that didn't get reported earlier, given the ambiguous photos,
since if that is an Iceland Gull it would be one of the darker ones I've
seen and at first blush it has some pro-Thayer's features.  Would be worth
tracking that one down again.

 

(To see what I mean: Hampton's Thayeri/Kumlieni/Glaucoides scale:
http://www.tertial.us/gulls/tkg.htm )

 

Phil

 

 

On Mon, Feb 3, 2014 at 11:03 PM, Andrew Baksh <[email protected]> wrote:

  

FYI...


Begin forwarded message:

From: AA Fawkes <[email protected]>
Date: February 3, 2014 at 10:38:58 PM EST
To: <[email protected]>
Subject: [nysbirds-l] Kumlien's/Thayer's Gull on CP Resevoir Sunday
Reply-To: AA Fawkes <[email protected]>

Apologies for posting late. An immature white-winged gull, possibly a
Thayer's, was on the reservoir Sunday, along with several hundred other
gulls and a definite Kumlien's. There has been quite a bit of debate on
various facebook groups, and I would welcome more opinions. I'm going to try
to re-find the bird tomorrow to get better pictures, as the ones I've got
are distant and overexposed.

 

https://www.flickr.com/photos/elwingflight/sets/72157640157804394/

 

Anya Auerbach

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