Attributes / relations provided by
♦ ¹Niche Partitioning, Distribution And Competition In North Atlantic Beaked Whales, Colin D. MacLeod, A thesis submitted to the School of Biological Sciences for a degree of Doctor of Philosophy at the University of Aberdeen, Aberdeen, UK. January 2005
♦ ²Population status, foods and foraging of Laysan albatrosses Phoebastria immutabilis nesting on Guadalupe Island, Mexico, Robert L. Pitman, William A. Walker, William T. Everett, Juan Pablo Gallo–Reynoso, Marine Ornithology 32: 159–165 (2004)