Southern boobook north of Perth. There, southern boobook owls are dying after eating rodents that people have killed with second-generation anticoagulant rat poison. Older poisons such as warfarin or coumatetralyl were unlikely to affect owls. Southern boobook The southern boobook ("Ninox boobook") is a species of owl native to mainland Australia, southern New Guinea, the island of Timor, and the Sunda Islands. Described by John Latham in 1801, it was generally considered to be the same species as the morepork of New Zealand until 1999. Its name is derived from its two-tone "boo-book" call. Eleven subspecies of the southern boobook are recognized,
Southern boobook sites. Caves or ledges are alternative roosting sites if no suitable trees are available. Although unobtrusive, it may give itself away by droppings or pellets on the ground beneath. The southern boobook is mobbed by passerines if discovered. It may allow people to approach to within . The maximum age recorded from banding has been 15 years 11 months, in a bird caught and later caught again on Black Mountain in the Australian Capital Territory. Across Australia, breeding takes place from July to February, though peaks in October, and is generally earlier in more northern areas. Eggs are laid from