lusitanius Yellow-legged Gull
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Gabriel Martín
Antonio Gutierrez
Rui Caratão
Mars Muusse
michahellis
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Yellow-legged Gull lusitanius 1cy, November 07 2012, Peniche, Portugal. Picture: Rui Caratão.
No coverts replaced in post-juvenile moult. Rear lower scapulars replaced in both birds. Especially bird in the background expected to belong to local breeding stock 'lusitanius'.
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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