[See a problem? Check the foot. Photo by Don Freiday, click to enlarge.]
"Does it have a hind claw?"
Turns out the answer to Michael O'Brien's question was not only no, but careful examination in the field and of photos reveal that the Black-bellied Whistling Duck appears to have NO claws on either foot. Not good evidence for a bird of wild provenance. A quick check of a couple sources reveals no logical explanation, other than that they were cut or pulled.
[Right foot, too. Photo by Don Freiday, click to enlarge.]