Subject: Gull pictures (long)
Date: Jan 13 17:08:55 2002
From: Ruth Sullivan - godwit at worldnet.att.net


Hello Kelly and Chris,
First thank you Kelly to post the photo of the Bohamian Waxwing you found
on Christmas Eve on Mud Bay,i believe this bird is a first for the
County.Seeing the photo of you Gull, i must agree with Chris,that this bird
is a Herring Gull,it is verry typical heavy body with a pale yellow eye and
a large bill.Where yoy found this bird we usual seeig three Herrig Gulls
there when we birding there.


Ruth Sullivan Tacoma
----- Original Message -----
From: Chris Hill <chill at kingfish.coastal.edu>
To: Kelly Mcallister <mcallkrm at dfw.wa.gov>
Cc: <tweeters at u.washington.edu>
Sent: Sunday, January 13, 2002 1:48 PM
Subject: Gull pictures (long)


> >
> > The other two photos were taken during my brief attempt at sorting out
adult gull identification
> > at Perry Creek mouth, Mud Bay, Thurston County, Washington. I will
probably work on
> > creating hyperlinks for these photos so that each one can be viewed at a
larger size on the
> > screen. As it is, I don't think the gull's pale eyes can be seen. I am
calling it a Herring
> > Gull but I am open to correction, if the photos are good enough to allow
independent evaluation.
> > I think the bill is too large and heavy for it to be a pale-eyed
Thayer's Gull.
> >
> > Hope to hear from anybody who cares to take a look.
>
> Kelly,
>
> to me, the flat head and long bill sure look like Herring Gull. More than
> that, the wingtip pattern looks much more like Herring than Thayers. If
> you look at that black-and-white area that corresponds to the tips of the
> primaries on the folded wing, the impression I get on your bird is of big
> black feathers with small white tips. On all the Thayers I saw in Puget
> Sound, that area looked like a row of a checkerboard - black and white
> "squares," equal in width. Although Thayers vary regionally, I've
> found that pattern a distinctive "checkpoint" when looking at possible
> Thayers in WA. In adults only, of course, but this bird looks like a full
> adult.
>
> Of course, the white would tend to decrease over time through wear, but
> (1) this bird has *really* small spots, and (2) I'd only worry about
> dramatic wear if this picture were taken in May or June. Gulls are in
> pretty fresh plumage through the winter.
>
> I used to have such a hard time finding Herring Gulls in Puget Sound. I
> swear, I think Herring is more *overreported* (on CBCs especially) than
> any other gull species. But if you reported this as a Herring, I would
> believe it no problem, even if you hadn't seen pale eyes.
>
> Other than the light eye, I'd be more worried about this bird being a
> GWG-WG hybrid than a Thayers. However, most hybrids I see that are that
> dark in the wingtip are very white on the head in winter (Western
> Gull-like). I have a hard time judging mantle color on a sunlit
> photograph, so I probably shouldn't even try. Your bird's back appears
> pretty dark for a Herring, more like a GWG-HG hybrid, but that could just
> be the lighting. I'd expect a hybrid's bill to be more bulbous, less
> long, but perhaps I'm overanalyzing that. I can't see if the wingtips are
> truly black (like Herring) or dark gray (like most hybrids).
>
> Anyway, I'm no expert, but in my opinon, it's no Thayers, and has several
> features that point towards Herring rather than a mongrel.
>
> I'm off to the local dump tomorrow to sort through a few thousand gulls
> (mostly ring-billed and herring) for other goodies, so this is a good
> mental warmup.
>
> I'd be interested to hear what others think.
>
> Nice photos of the Waxwing, too, by the way.
>
> Chris Hill
> Conway, SC (formerly, Everett, WA)
> chill at coastal.edu
>