Yellow-legged Gull Larus michahellis
3cy, August 13th 2010, Warwickshire
© A. R. Dean
Tertials and coverts largely replaced with smooth grey, adult-like feathers and at rest appearance generally quite like adult. Spread wing shows that primaries p1 to p6 have been replaced with adult-like feathers, p7 and p8 have been dropped, while the two outermost primaries have yet to be replaced. There are residual signs of immaturity (dark feathering) in secondaries, tip of tail and in primary coverts.
| Laughing |
Ring-billed | Common |
Lesser Black-backed |