Heuglin's Gull (L. heuglini / antelius)
(last update:
Possible heuglini 2cy, February 19 2012, Zagreb landfill, Croatia.
Most attention went to the adult with active moult in the inner secondaries and P9-P10. But we had 7 birds of the LBBG-complex. Here is another: 2cy bird, still most in complete juvenile plumage, except for some scapulars which have been replaced for 2nd gen feathers.