Photo 6548:
Yellow-legged Gull michahellis sub-adult,
September 30
2001, Dannes, France (50.43N,01.37E).
Primary P7 fully grown. Note the diffuse
bill-band and the pale yellow base of the bill. Note the notched tertials, the
piano-key pattern in the outer greater coverts and the white tips of the outer
primaries in the juvenile (1cy) Herring Gull left.

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