Camptolaemus Labradorius. Treated as a species and described from specimens last collected in the 1870s, the Labrador Duck (Camptorhynchus labradorius) is supposedly extinct. Thus waterfowl expert John C. Phillips (1922, vol. 1, p. 34) commented that, “During the ornithological history of this country only one species of North American duck has disappeared, namely, the Labrador Duck.” Labrador Duck is a synonym of Pied Duck, the vernacular name used by early writers such as John James Audubon, who in his famous Birds of America (1840-1844) listed it under the binomial Fuligula labradora. But in fact, it seems that descriptions of this “species” were based on specimens of what were probably natural hybrids of Steller’s Eider (Polysticta stelleri) and Common Eider (Somateria mollissima). Illustrated page from "Extinct Birds" by Lionel Rothschild, published in 1907, and drawn by John Gerrard Keulemans (1842–1912).