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Bull, John L.; Farrand, John Jr.; Rayfield, Susan & National Audubon Society (1977): The Audubon Society field guide to North American birds, Eastern Region. Alfred A. Knopf, New York.ISBN 0-394-41405-5

Harrison, Peter (1983): Seabirds: An Identification Guide. Croom Helm, Beckenham.ISBN 0-7099-1207-2

Heidrich, Petra; Amengual, José F. & Wink, Michael (1998): Phylogenetic relationships in Mediterranean and North Atlantic shearwaters (Aves: Procellariidae) based on nucleotide sequences of mtDNA. Biochemical Systematics and Ecology 26(2): 145–170. PDF fulltext

Snow, David W.; Perrins, Christopher M. & Gillmor, Robert (1998): The Birds of the Western Palearctic. Oxford University Press.ISBN 0-19-850187-0