Attributes / relations provided by
♦ ¹FEEDING ECOLOGY OF THE DARK-RUMPED PETREL IN THE GALAPAGOS ISLANDS, M. J. Imber, J. B. Cruz, J. S. Grove, R. J. Lavenberg, C. C. Swift, F. Cruz, The Condor 94:437-447 (1992)
♦ 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.