Southern boobook age. Brushtail possums ("Trichosurus" spp.) and introduced cats and rats raid the nests for nestlings and eggs, and raptors such as the brown goshawk ("Accipiter fasciatus"), grey goshawk ("Accipiter novaehollandiae"), Australian masked owl ("Tyto novaehollandiae"), and probably powerful owl ("Ninox strenua") seize young birds. Juvenile southern boobooks are at greater risk after bushfires and have perished after being tangled up in dodder ("Cassytha") or bidgee-widgee ("Acaena novae-zelandiae"). The southern boobook generally preys on mice, insects, particularly nocturnal beetles and moths, and birds the size of a house sparrow ("Passer domesticus"). A higher proportion of its diet is invertebrates compared with
Australasian swamphen Australasian swamphen The Australasian swamphen ("Porphyrio melanotus") is a species of swamphen occurring in eastern Indonesia, the Moluccas, Aru and Kai Islands, as well as in Papua New Guinea and Australia. It is also found in New Zealand, where it is known as the pukeko, a term derived from the Māori language. The Australasian swamphen used to be considered a subspecies of the purple swamphen. The Australasian swamphen is found in mainland Australia, eastern Indonesia, the Moluccas, Aru and Kai Islands, and in Papua New Guinea. They are also found on New Zealand's main islands and in the Chatham and