sidewinder, horned rattlesnake, Crotalus cerastes
['spindle', 'bald eagle, American eagle, Haliaeetus leucocephalus', 'nail', 'cougar, puma, catamount, mountain lion, painter, panther, Felis concolor', 'wool, woolen, woollen', 'ostrich, Struthio camelus', 'racket, racquet']