American Herring Gull (smithsonianus)(last update: October 30, 2015) |
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American Herring Gull (smithsonianus) adult, October 28 2007, Monterey Bay, California, USA. Picture: Jeff Poklen.See this website by Jeff, showing West coast birds mostly. West coast bird in active moult: P10 old, active moult in rectrices. Lacking obvious immature markings, but little black in the greater primary coverts. Bold winter streaking. Complete W-pattern on P5 and black on P4. Note very short P10-tongue, on far wing from below. |