Attributes / relations provided by
♦ 1Prey selection and its relationship to habitat and foraging strategy of molting White-winged (Melanitta fusca) and Surf Scoters (M. perspicillata) in Puget Sound, WA, and the Strait of Georgia, BC., Heather J. Tschaekofske, Masters Thesis, Evergreen State College, 2010
♦ 2Wootton, J. Timothy. "Estimates and tests of per capita interaction strength: diet, abundance, and impact of intertidally foraging birds." Ecological Monographs 67.1 (1997): 45+. Academic OneFile. Web. 23 July 2010