[obol] Possible SLATY-BACKED GULL

[Alan Contreras]

Actually I have seen a southern Western Gull in Oregon once, at Bandon maybe
15 years ago.  One big difference is bill structure - SB have a more
slender, California-shaped bill.  I have sent my photos to some gull
experts; we'll see what they think.

-- 
Alan Contreras
EUGENE, OREGON

acontrer at mindspring.com
OREGONREVIEW.BLOGSPOT.COM





> From: Cindy Ashy <tunicate89 at yahoo.com>
> Date: Thu, 11 Oct 2007 00:07:05 -0700 (PDT)
> To: <obol at lists.oregonstate.edu>
> Subject: Re: [obol] Possible SLATY-BACKED GULL
> 
> Could someone please explain how one would ever be
> certain that they were looking at a Slaty-backed Gull
> instead of "southern race" Western Gull, especially if
> you don't see it fly? (I'm talking about
> adults/subadults) And...why there never seems to be
> any discussion about the possibility of a extra dark
> backed "western-like" gull in Oregon actually being a
> southern race Western Gull....seems like everyone
> immediately starts talking about Slaty-backed Gulls.
> Isn't it possible/probable that some of these rare
> dark backed gulls in Oregon could be the southern race
> of Western Gull? I think I read somewhere that
> Slaty-backed Gulls wander and that Western Gulls don't
> wander as much as other species....is this true?
> 
> Cindy Ashy
> 
> 
>       
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