|1st cycle Glaucous Gull. Montrose Beach. Chicago, IL. 2 DEC 2011. Photo by Steve Spitzer.|
|2nd cycle Lesser Black-backed Gull. Montrose Beach. Chicago, IL. 2 DEC 2011. Photo by Amar Ayyash.|
This fellow was on the large end, matching or exceeding most of the surrounding Herrings in body size. I recently wrote a piece on Lesser Black-backed's status in North America and speculated that if this species is found breeding in the states, it would do well side-by-side with American Herring. I stand by that statement and feel Lessers are more than capable of competing with that species. In fact, the only known nesting occurrences of LBBG in the United States is that of hybrid pairings with American Herring.
I recorded an amateur video of this individual fending off a handful of Herring's as it fed on a dead fish along the shore: