Atlantic Yellow-legged Gull (atlantis)(last update: October 12, 2011) |
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Atlantic YLG (atlantis) sub-adult, September 19 2012, Vila Franca do Campo - São Miguel, Azores Islands. Picture: António Gonçalves.P7/P10, probably 4cy bird, with large mirror on old P10. Larus fuscus graellsii versus Larus michahellis atlantis. Note difference in primary moult stage. |