photo 5609: Yellow-legged
Gull michahellis group, July 27 2001, Etaples, France
(50.44N,01.35E).
Note the difference in moult progress: right is
a 2cy without old primaries (P10 shed) and the tip of P9 already visible, while
two landing adults show P7-P10 which are still old. The 2cy shows secondary
moult: S1 full grown, S2-S3 growing, S4-S10 missing and the inner secondaries
still old (juvenile), although there seem to be a few missing (the innermost
secondaries / lower tertials near the body).
|