What is Stiff-tailed duck?
The '''stiff-tailed ducks''' are part of the [[Oxyurinae]] subfamily of [[duck]]s. All have, as their name implies, long stiff [[tail]] [[feather]]s, which are erect when the bird is at rest. All have relatively large swollen bills. These are freshwater diving ducks. Their legs are set far back, making them awkward on land, so they rarely leave the water. Their unusual displays involve drumming noises from inflatable throat-sacs, head throwing, and erecting short [[Crest (feathers)|crest]]. Feather sequences are complicated, and it is hard to tell how old one of these ducks is. Feathers are vital for survival because of this animals tendency to spend time in the water. Without feathers this duck would die of hypothermia because it could not regulate its body temperature. [[Category:Ducks]]