What are webbed feet birds called?
The only kind of birds that have webbed feet are seafowl. So, if a bird, has webbed feet, he or she can generally be called a seafowl.
A lot of birds that do not live in or around the sea have webbed feet as well - many ducks for instance.
However, birds CAN be be categorized by their feet. Birds that have webs between their front three toes are called palmate. Birds that have feet that are not completely webbed are called semipalmate (such as the Semipalmated Sandpiper or the Semipalmated Plover - you can tell they were really creative when naming these species). Birds that have feet in which all four toes are webbed are called totipalmate, such as the pelican, cormorant, gannet, and booby.