Atlantic Yellow-legged Gull (atlantis)

(last update: October 12, 2011)

Coordinators:
Rui Caratão (Portugal)
Mars Muusse (Netherlands)

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.