black swan, Cygnus atratus
['American alligator, Alligator mississipiensis', 'bulbul', 'bighorn, bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep, Ovis canadensis', 'ant, emmet, pismire', 'clog, geta, patten, sabot', 'hog, pig, grunter, squealer, Sus scrofa', 'hen-of-the-woods, hen of the woods, Polyporus frondosus, Grifola frondosa']