Growth and survival of nestlings in a population of red-crowned parakeets (Cyanoramphus novaezelandiae) free of introduced mammalian nest predators on Tiritiri Matangi Island, New Zealand
The negative effects of introduced nest predators on the breeding success of endemic New Zealand parrots are well documented, as is their role in the general decline of these species. In contrast, little is known about the intrinsic intra-brood dynamics responsible for modulating fledging success in parrots breeding at sites free of introduced nest predators. We studied red-crowned parakeets over two breeding seasons on Tiritiri Matangi, an offshore island free of introduced mammalian predators.