Posted by Bill Pranty on February 09, 2004 at 20:09:51:
In Reply to: Re: Possible Kelp Gull on Miami Beach posted by Bill Elrick on February 09, 2004 at 13:58:51:
Hi Bill,
I agree that you seem to have an adult _intermedius_ Lesser Black-backed Gull. (I say "seem" because it's really difficult to be certain about gulls, as posts to ID-Frontiers attest).
We don't get many _intermedius_ down here either; to my knowledge there are just a few documented records. Most birds are _graellsii_, as in the rest of the US.
A good reference, with lots of color pix, is:
Post, P.W., and R.H. Lewis. 1995. The Lesser Black-backed Gull in the Americas: occurrence and subspecific identity. Part 1: taxonomy, distribution, and migration. Birding 27: 282-290.
Best regards,
Bill Pranty
Avon Park, Florida