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Tuesday, December 8, 2009

Wastewater gulling (& Blue-winged Teal in Dec!)

Had a chance to check the wastewater briefly this morning, and was pleased to find my first ever December Blue-winged Teal for Michigan along the center dike, a drake.
Also was treated to six gulls species including Glaucous, Bonaparte's (only 1, a youngster), Herring, Ring-billed (still 350+), Iceland type (not seen well enough to be positive thayeri was ruled out), and Thayer's. The Thayer's was a nice adult seen at close range near the dump, allowing for close study:

Note the black subterminal markings on p5, a sure sign of thayeri in any adult kumlieni/thayeri candidate.
Finally, I also had a strange Ring-billed Gull adult with a black bill with a small yellow tip. Not sure what to make of this.