Attributes / relations provided by
♦ ¹Coastal Cutthroat Trout (Oncorhynchus clarki clarki) Diet In South Puget Sound, Washington 1999 – 2002, Joseph M. Jauquet, Masters Thesis, Evergreen State College, 2002
♦ ²Breeding ecology of Horned Puffins (Fratercula corniculata) in Alaska: annual variation and effects of El Niño, A.M.A. Harding, J.F. Piatt, and K.C. Hamer, Can. J. Zool. 81: 1004–1013 (2003)