Attributes / relations provided by
♦ ¹THE DIET OF MARKHAM’S STORM PETREL OCEANODROMA MARKHAMI ON THE CENTRAL COAST OF PERU, IGNACIO GARCÍA-GODOS, ELISA GOYA & JAIME JAHNCKE, Marine Ornithology 30: 77–83 (2002)
♦ 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.