- [Wiki]
http://en.wikipedia.org/wiki/Pterodroma_phaeopygia.
- [Kooy2010]
Kooijman, S. (2010).
Dynamic Energy Budget theory for metabolic organisation.
Cambridge Univ. Press, Cambridge.
- [PrinPres1991]
Prinzinger, R., A.Preßmar, and Schleucher, E. (1991).
Body temperature in birds.
Comp. Biochem. Physiol., 99A(4):499--506. doi:10.1016/0300-9629(91)90122-S.
- [Warh1990]
Warham, J. (1990).
The petrels; thier ecology and breeding systems.
Academic Press, London.