Formerly called Oldsquaw. It is the male of the species that has the long central tail feathers.
This medium-sized duck has several distinctive features and characteristics when compared to other ducks.
The Long-tailed Duck can dive as deep as 60m to forage, and of all diving ducks spends the most time under water relative to time on surface.
Unlike most ducks, which molt twice a year, the Long-tailed Duck has three distinct plumages each year, achieved in a complex series of overlapping partial molts.
Clangula hyemalis breeds in the Artic and winters along the coasts of North America.
Vocalization of the male Long-tailed Duck is a loud, nasal, seemingly incessant call, ow-owooolee:
http://www.oiseaux.net/oiseaux/anseriformes/son/Clangula.hyemalis.mp3
When feeding the call is a soft gut-gut and when alarmed the call is a bark.
[All text: Ref (56)]
No comments:
Post a Comment