picture by J R Compton. http://www.JRCompton.com/photos/The_Birds/J/


Alderfer, J. 2006. National Geographic Complete Birds of North America. National     Geographic, Washington, D.C., USA.

Aves. <URL: http://tolweb.org/Aves/15721>Accessed 21 April 2010.

Aythya affinis 2009. <URL: http://animaldiversity.ummz.umich.edu> Accessed 11 April 2010.

Duck Design 2010. <URL: http://mdc.mo.gov/kids/out-in/2001/02/1.htm>Accessed 14 April 2010.

Family Anitidae 2003. <URL: http://animaldiversity.ummz.umich.edu/site/accounts/information/Anatidae.html> Accessed 16 April 2010.

Field Guide to Birds of North America: Lesser Scaup 2007. <URL: http://identify.whatbird.com/obj/93/overview/Lesser_Scaup.aspx> Accessed 24 March 2010.

Johsgard, P.A. and M. Carbonell. 1996. Ruddy Ducks and Other Stifftails. University of Oklahoma Press:Norman and London.

Lesser Scaup 2009. <URL: http://www.allaboutbirds.org/guide/Lesser_Scaup/lifehistory> Accessed 24 March 2010.

Livesy, B. C. 1996. A Phylogenetic Analysis of Modern Pochards. The Auk 113:74-93.

Sargeant, A.B., S.H. Allen and R.T. Eberhardt. 1984. Red fox predation on breeding ducks in mid-continent North America. The Wildlife Society.

Strand, K.A., S.R. Chipps, S.N. Kahara, K.F Higgins and S. Vaa. 2008. Patterns of prey use by lesser scaup Aythya affinis and diet overlap with fishes during spring migration. Hydrobiologia 598:389-398.

Understanding Waterfowl: Into the Deep. <URL: http://www.ducks.org> Accessed 14 April 2010.

Walker, Ben. March 2, 2010. Hypothesized Factors of Scaup Population Decline. UW-L Department of Biology.

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