Attributes / relations provided by
♦ ¹THE DIET AND FORAGING BEHAVIOUR OF TWO PATAGONIAN CORMORANTS, G.E. PUNTA, J.R.C. SARAVIA & P.M. YORIO, Marine Ornithology 21, 1993, pp. 27-36
♦ ²Foraging ecology of grey-headed mollymawks at Marion Island, southern Indian Ocean, in relation to longline fishing activity, Deon C. Nel, Jeanne L. Nel, Peter G. Ryan, Norbert T.W. Klages, Rory P. Wilson, Graham Robertson, Biological Conservation 96 (2000) 219-231