www.gull-research.org

On one of my recent video of a cr-LBBG (Sönke Martens's yellow HE708), I happen to notice a strange gull I didn't pay attention to in the field: the bird just at the left of HE708 in the first sequence (first 32 sec) of http://youtu.be/1jVUkq__6qU. Quite long fine bill reminiscent of cachinnans (no other view of course). (On this landfill site (Maine-et-Loire, Western France), the majority of the LWH gulls were Yellow-legs with some immature LBBG.)
Any comment?

hello alain,

the bird looks to be a fine 2cy (early "1st summer") cachinnans indeed. bill is perfect with its pointed tip, as are the plain greater coverts - not only worn pattern - renewed lower scapulars are also well acceptable and 2nd gen. median covert row with all dark centers, for caspian gull.

all the best,

lou

Great! Thank you Lou!