American Herring Gull (smithsonianus)(last update: October 30, 2015) |
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American Herring Gull (smithsonianus) 4cy (3rd cycle), February 29 2008, Dryden, NY, USA. Picture: Mike.See Mike's Picasa website for many more taxa and images of American Herring Gull. Obvious immature characters. Combination of grey inner primaries, black sub-terminal bands on central primaries and rather small completely enclosed mirror on P10 advocate 3cy (3rd cycle). Limited dark in tail, yet deep blackish not brown. |