6-Letter Birds Starting with 'WI'

A medium-sized freshwater dabbling duck of the genus Mareca, native to wetlands across the Northern Hemisphere, characterized by a short bill and, in the male, a whistling call and a prominent reddish or pale crown.

A large, heavily built North American sandpiper (Tringa semipalmata) found in coastal and wetland habitats, distinguished by its thick bill, mottled gray or brown plumage, and a striking black-and-white wing pattern that flashes conspicuously in flight.