On Sat, 4 May 2019 20:49:49 -0700, "Alvaro Jaramillo" <chucao...> wrote:
>Peter > Hey there. I am confused here, to me this bird looks like a perfectly >normal California Gull except for the bill. The bill is deformed, and apart >from the shape, one telltale feature that it is deformed is that mealy look >to the color of the bill. Often deformed gulls have this mealy bill color. I >am not sure why, but it is pretty consistent. > The tail looks normal to me as well. This is a juvenal tail, and does >not look odd for a worn juv. Tail to me. Back darkness looks normal as well. > > Cheers, >Alvaro > >Alvaro Jaramillo ><alvaro...> >www.alvarosadventures.com > >-----Original Message----- >From: <SFBirds...> <SFBirds...> On Behalf Of Peter Pyle >Sent: Saturday, May 4, 2019 8:16 PM >To: Alvaro Jaramillo <chucao...> >Cc: <SFBirds...> >Subject: Re: [SFBirds] Possible Black-tailed Gull Lake Merced Boathouse > >I've done some research and can't find close matches with second-cycle >Black-tailed so will re-identify it in eBird as Gull sp. >The back still looks dark to me for CAGU and I'd like to find one with a >tail pattern like this bird has. Both species at this age are of course >extremely variable, which makes it but fun and a challenge. >Comments on specific identification criteria, pro and con, still welcomed. > >Peter > >At 07:48 PM 5/4/2019, Alvaro Jaramillo wrote: >>Peter >> It is a California Gull with a deformed bill. >>Alvaro >> >>Alvaro Jaramillo >><alvaro...> >>www.alvarosadventures.com >> >>-----Original Message----- >>From: <SFBirds...> <SFBirds...> On Behalf Of Peter Pyle >>Sent: Saturday, May 4, 2019 6:13 PM >>To: <SFBirds...> >>Subject: Re: [SFBirds] Possible Black-tailed Gull Lake Merced Boathouse >> >><https://ebird.org/view/checklist/S55815948>https://ebird.org/view/chec >>klist >>/S55815948 >> >> >>comments welcome on photos. P >> >>At 05:30 PM 5/4/2019, Peter Pyle via Groups.Io wrote: >> >Just getting a quick word out. It's a second-cycle bird with a big >> >long bill - thought it was a deform-billed CAGU but now that I'm >> >looking at my photos the darker back and tail pattern may point more >> >to Black-tailed. Will post photos to eBird. It was on the western of >> >the three docks, the wide trex one. I flushed it to get flight shots >> >but it pulled around and landed back on the dock with about 25 WEGUs. >> >Also the continuing Palm Warbler in the myopoum at the top of the >pull-out hill. >> > >> >This is in Lake Merced Park along Harding Road to the entrance of >> >Harding Park golf course, north end of south arm of Lake Merced. >> > >> >Cheers, Peter >> > >> > >> > >> >> >> >> >> >>--- >>This email has been checked for viruses by AVG. >>https://www.avg.com > > > > > > -- Joseph Morlan, Pacifica, CA
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