photo 6899: Yellow-legged
Gull michahellis adult, October 01 2001, Le Portel, France
(50.44N,01.35E).
Primary P9 fully grown. Note the rather pale
yellow bill, the limited black marking on the gonydeal angle and the relatively
small white tips on the recently moulted upper two tertials, maybe indication
this is a 4cy/5cy bird.
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