Larus armenicus

(last update: 7-9-2010)

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armenicus info
armenicus iris speckling
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Fig 17: Larus (ssp?) barabensis female at Tengiz Lake, Kazachstan, May 1998. Picture: Andreas J. Helbig.
Wing-tip pattern in adult female: Note the relatively limited amount of black in the outer wing, and both P9 and P10 show a clear delimited pale 'tongue' on the inner webs (which is commonly found in barabensis). Armenicus has a diffuse transition from black to grey on P9 and P10.
Note also the mirror on P9 (77% in a small sample of breeding birds at Lake Tengiz, n = 22, showed mirrors on both P9 and P10). Apparently there is no relation between number of mirrors and sex; as in fact is also the case in armenicus (n = 10, birds sexed on molecular markers).