Synonyms for Feather (same or very similar meaning)
WordNet sense 1 (the light horny waterproof structure forming the external covering of birds):
plumage, plumeWordNet sense 2 (turn the paddle; in canoeing):
squareWordNet sense 3 (turning an oar parallel to the water between pulls):
featheringWordNet sense 4 (grow feathers):
fledgeFrom the ODE community, based on WordNetadd/edit