%0 Journal Article %T Population Structure and Mitochondrial Polyphyly in North American Gadwalls (Anas Strepera) %A Peters, Jeffrey, L. %A Omland, Kevin, E. %J Auk: Ornithological Advances %V 124 %N 2 %@ 0004-8038 %D 2007-04-01 %I Narnia %~ DeepDyve