Photo 6531:
Yellow-legged Gull michahellis sub-adult,
September 30
2001, Dannes, France (50.43N,01.37E).
Two sub-adult Yellow-legged Gulls with primary
P8 fully grown. Compare the grey tone with the Lesser Black-backed Gull (graellsii/intermedius)
in front. Both individuals show well-developed head streaking, appearing as a
smudgy patches at the ear-coverts. Note the diffuse bill-band and the pale
yellow base of the bill.
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