A Long-tailed duck (Clangula hyemalis, Harelde kakawi, LTDU) flying in soft evening light on the Katchemack Bay near Homer, Alaska. Formely known as Oldsquaw, this name fell out of favor under influence of negative connotations of the word squaw in English usage. Capable of diving as deep as 200 feet, it spends the most time under water relative to time on the surface of all diving ducks. When foraging, it spends three to four times as much time submerged as it does on the surface. With three different plumages during the year, it has the most complex molt of any waterfoul species.