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♦ ¹ADAM J. BESTER, DAVID PRIDDEL & NICK I. KLOMP, Diet and Foraging Behaviour of the Providence Petrel Pterodroma solandri Marine Ornithology 39: 163–172 (2011)
♦ ²Diet composition, continuity in prey availability and marine habitat – keystones to population stability in the Snares Penguin (Eudyptes robustus), Thomas Mattern, David M. Houston, Chris Lalas, Alvin N. Setiawan and Lloyd S. Davis, Emu, 2009, 109, 204–213