ostrich, Struthio camelus
['red-breasted merganser, Mergus serrator', 'swab, swob, mop', 'hippopotamus, hippo, river horse, Hippopotamus amphibius', 'ocarina, sweet potato', 'oboe, hautboy, hautbois', 'ruddy turnstone, Arenaria interpres', 'loggerhead, loggerhead turtle, Caretta caretta']