1. Reproductive conflicts in social animals: who has the power?;Beekman;Trends in Ecology & Evolution,2003
2. Cooperative begging in banded mongoose pups;Bell;Current Biology,2007
3. The Ostrich Communal Nesting System;Bertram,1992
4. Mating systems and sexual conflict;Cockburn,2004
5. Craig, J. L. 1974. The social organization of the pukeko, Porphyrio porphyrio melanotus Temmink, Ph.D. thesis, Massey University.