Attributes / relations provided by
♦ ¹Marbled Murrelet Food Habits and Prey Ecology, Esther E. Burkett, USDA Forest Service Gen. Tech. Rep. PSW-152. 1995., Chap 22, p. 223-246
♦ ²Winter Diet of Atlantic Puffins (Fratercula arctica) in the Northeast Atlantic, Knud Falk, Jens-Kjeld Jensen and Kaj Kampp, Colonial Waterbirds, Vol. 15, No. 2 (1992), pp. 230-235