Roy Woodford writes:

"I found this little guy was hanging around on the side of the Marsh Discovery Trail last week about 150 feet past the first floating platform.  

"Once he got used to the sound of a Nikon's shutter, he decided he didn't mind me too much.  I actually had to back up several times while he was feeding … he kept walking inside my minimum focus distance of 18 feet (that rarely happens … lucky day for me)."  (Thanks, Roy!)