Caption:
Long-tailed duck, Clangula hyemalis 1, redhead, Aythya americana 2, and lesser scaup, Aythya affinis 3. Old-squaw, redhead and lesser scaup-duck. Chromolithograph after an ornithological illustration by John James Audubon from Benjamin Harry Warrens Report on the Birds of Pennsylvania, E.K. Mayers, Harrisburg, 1890.