Yellow-legged
Gull- Geelpootmeeuw (L. michahellis): 2cy April
(last update: 08 december 2003)
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Photo 008: Yellow-legged Gull michahellis 2cy, April 19 2002, Etaples, NW France (50.42N,1.34E).
Two 2cy michahellis and one 2cy argenteus (centre). Note the differences in coloration and moult stage. By mid-April most michahellis (about 80%) have at least a few coverts moulted in the post-juvenile moult and active moult in the outer and central greater coverts is obvious. From a distance the division between the white head and the dark streaking in the hind-neck, creating a dark collar in michahellis is another clue.
Note that a white-headed appearance is not particularly diagnostic for michahellis in mid-April, or in so-called "first winter" plumage, although sometimes stated otherwise.
