These photos were taken from a dive boat just south of the Florida Keys in January. The second photo suggests that the tip of the beak may be orange - of course it could be a trick of the light or a bit of Frito's.
http://pnart.com/temp/SomeGull0211.jpg
http://pnart.com/temp/SomeGull0208.jpg
I'm not even 100% sure it's a gull - maybe it's a gull-billed tern.
http://pnart.com/temp/SomeGull0211.jpg
http://pnart.com/temp/SomeGull0208.jpg
I'm not even 100% sure it's a gull - maybe it's a gull-billed tern.