Attributes / relations provided by
♦ ¹del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
♦ ²DIET OF THE AUSTRALASIAN GANNET MORUS SERRATOR (G.R. GRAY) AROUND NEW ZEALAND, D.A. ROBERTSON, New Zealand Journal of Ecology (1992) 16(2): 77-81