• [Wiki] http://en.wikipedia.org/wiki/Pterodroma_pycrofti.
• [AnAge] http://genomics.senescence.info/species/entry.php?species=Pterodroma_hypoleuca.
• [GangWils2004] Gangloff, B. and Wilson, K.-J. (2004). Feeding frequency, meal size and chick growth in Pycroft's petrel (Pterodroma pycrofti): preparing for chick translocations in Pterodroma species. Notornis, 51:26--32.
• [Kooy2010] Kooijman, S. (2010). Dynamic Energy Budget theory for metabolic organisation. Cambridge Univ. Press, Cambridge.