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
New Britain boobook series of rapidly repeated "whoo"s, starting at a low pitch which rises and becomes faster and louder. This species is found in the lowlands and hills of the New Britain and New Ireland Endemic Bird Areas at elevations of up to above sea level. It is fairly common in its small range and is nocturnal. It roosts during the day alone or in pairs in the middle to upper parts of the forest canopy. It feeds mainly on insects and small mammals. Formerly classified as being a "Species of Least Concern" by the IUCN, the New Britain boobook was later