lusitanius Yellow-legged Gull
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Gabriel Martín
Antonio Gutierrez
Rui Caratão
Mars Muusse
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Yellow-legged Gull lusitanius 1cy, November 07 2012, Peniche, Portugal. Picture: Rui Caratão.
Some birds have coverts replaced in post-juvenile moult, others have a complete juveile covert panel. Background left: LBBG juvenile.
Warning: by November, the Atlantic coast of Portugal holds large numbers oif birds, including Lesser Black-backed Gulls (graellsii / intermedius), Mediterranean Yellow-legged Gulls (michahellis michahellis) and of course local birds (michahellis lusitanius). Sometimes, these three taxa may appear extremely similar, and ID is tentative. However, extremes of all forms are rather straightforward, especially for bird watchers from the region.
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