Attributes / relations provided by
♦ 1FEEDING ECOLOGY OF TWO SUBTROPICAL SEABIRD SPECIES AT FRENCH FRIGATE SHOALS. HAWAII, Michael P. Seki and Craig S. Harrison, BULLETIN OF MARINE SCIENCE. 45(1): 52-67, 1989
♦ 2del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.).
Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.