A beautiful morning at the amazing Green Cay Nature Center gave me an wonderful shot of this pointy-billed bird.. He was sunning himself after a dip in the swamp water in and around the boardwalk. The open mouth and gular fluttering is to cool down as it was starting to get a little warm and not a display of aggression. He must have made this a perch on several occasions as he was not concerned with my presence at all. Anhingas are a member of the cormorant family which has been recently separated from the Pelican family.