Thayer's Gull (thayeri)(last update: January 22, 2013) |
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Thayer's Gull 1st cycle (1CY), November 30 2013, Lake County, IL. Picture: Amar Ayyash.Juvenile plumage. Alreadt bleached and worn scapulars by late November, so probably either an early arriver or origins on rather southern breeding grounds? |