This is a laughing gull (Leucophaeus atricilla) at Gulfport, Mississippi. When I took this photo last fall, I noticed the bird was standing on one leg, which made me wonder if it only had one leg. Perhaps one was taken by a shark. Then I noticed many birds were standing on one leg; first thought was "sharks must like bird legs." ;-) But they just had one leg and foot tucked up against their bodies as a way of reducing heat loss through their feet. There are a couple of other reasons, but I'll leave it at that.
As I've mentioned, I have a gallery of my favorite photos at: https://swede1952-photographs.pixels.com
Go there and take a look. Prints are for sale along with other doodads and I suppose it is kind of a business for me. But it's the kind of business where I don't care whether I sale anything or not. …