Re: [CVBirds] Gull ID Help
#1 is the most interesting, and appears to be a Glaucous-winged hybrid, probably x Herring (which are not all that unusual in the Central Valley). The bill size and shape is better for Gl-W than Thayer's, as well as the heavy structure and short primary projection. Also, the streaking on the breast forms horizontal bars, which is very typical of Gl-W.
#2 seems fine for Glaucous to me.
#3 I'd stick with Herring until proven otherwise.
Office of Spill Prevention and Response
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>>> "Jim Gain" <phalarope@...> 1/9/2008 11:25 AM >>>I hope it is OK to post this link here. I was hoping to get some feedback on
three gulls I observed at the Modesto Sewage Ponds during the CBC 2 weeks
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