American Herring Gull (smithsonianus)(last update: October 30, 2015) |
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American Herring Gull (smithsonianus), sub-adult, February 16 2014, BP Whiting refiney, IN. Picture: Maarten van Kleinwee.Plesae visit: GULLS TO THE HORIZON, for more images. No mirror on P10. Isolated clear black spots in tail and in secondaries. Also, black markings on tertials and on greater primary coverts. |