Yellow-legged gulls (L. michahellis). 31-7-11. 1st c.y. An individual with pale tail and underwing

Yellow-legged gulls (L. michahellis). 31-7-11. 1st c.y.

Yellow-legged gulls (L. michahellis). 31-7-11. 2nd c.y.

Yellow-legged gulls (L. michahellis). 31-7-11. 3rd c.y.

Yellow-legged gulls (L. michahellis). 31-7-11. Adults

1 w. Yellow-legged gull (L. michahellis), 19-02-11

1 w. Yellow-legged gull (L. michahellis), 19-02-11

1 w. Yellow-legged gull (L. michahellis), 19-02-11

1 w. Yellow-legged gull (L. michahellis), 19-02-11

2 w. Yellow-legged gull (L. michahellis), 09-01-11

2 w. Yellow-legged gull (L. michahellis), 09-01-11. A very pale and plane individual.

1 w. Herring gull (L. argentatus) & 1 w. Yellow-legged gull (L. michahellis), 19-12-10

Note the differences in size, shape and pattern with yellow-legged gull (right)

1 w. Herring gull (L. argentatus) & 1w. Yellow-legged gull (L. michahellis), 19-12-10. A typical individual

Yellow-legged gulls (L. michahellis). 19-12-10. Different ages

In spite the pictures are not very good, note the differnt ammount of grey feathers in 2 w.

1 w. with restricted cobert moult. The previous one is more extense but not much

Adults with a pigeon chick that is still alive

1 cy. Yellow-legged gull (L. michahellis), 16-10-10

1 cy. Yellow-legged gull (L. michahellis), 16-10-10. Note moulting stage by the age and time of the year. Tail and greater coberts are kikely to be lost, but note second generation median coberts.

1 w. Yellow-legged gulsl (L. michahellis), 13-3-10

1 w. Yellow-legged gulls (L. michahellis), 13-3-10. These individuals have moulted very few coberts but the last has started the primary moult

1 w. Yellow-legged gull (L. michahellis), 11-3-10

1 w. Yellow-legged gull (L. michahellis), 11-3-10. We all know that gulls should be identified in basis of different factors. This is just an example of why pale primary window is not enought to sort out michahellis

2 w. Yellow-legged gull (L. michahellis), 11-3-10

2 w. Yellow-legged gull (L. michahellis), 11-3-10. A nice 2w individual with very few grey feathers and two different generations in the secondaries. This has also started with primary and tail moult.