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Birds of America by John James Audubon LONG-TAILED
DUCK. [Oldsquaw.]
FULIGULA GLACIALIS, Linn. [Clangula hyemalis.]
http://employeeweb.myxa.com/rrb/Audubon/VolVI/00675.html
 Peterson North American
Birds - Oldsquaw
http://www.petersononline.com/birds/month/olds/
Symposia: Published Proceedings of Symposia of the
Pacific Seabird Group
http://www.nmnh.si.edu/BIRDNET/PacBirds/symposia.html
National Environmental Research Institute (NERI)
Department of Wildlife Ecology (DOWE) Denmark
http://www.gsf.de/UNEP/dendowe.html
Alison, R.M. 1975 Breeding Biology and Behaviour of the
Old Squaw (Clangula hyemalis L.). Ornithol. Monogr. No. 18
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