Latest Gulling on 2011 - an odd one!
I was focusing in the flock when a strange bird passed by:
A pic to show a typical primary pattern on YLG:
An immature Caspian with a very hooked bill:
Same bird from the other side:
And then the odd one appeared!
I think is a partly leucistic Heuglin's Gull:
Details shows a subadult:
Posted by dretos at 5:14 PM