Length: 29–38cm Wingspan: 70–100cm Weight: 310–360g
Lives Australia-wide. Common, but shy and rarely seen. Distinctive heart-shaped face. Call is infrequent loud screech. Feeds mostly on small mammals, but also birds, reptiles, frogs and insects. Hunts mostly over open ground. Numbers rise during mouse plagues.
Eastern grass owl
Tyto longimembris Length: 30–38cm Wingspan: 100–115cm Weight: M 265–310g, F 310–480g
A ground-nester found in grasslands, coastal heath, swamps and farmland in eastern and northern Australia. Nomadic. Mostly silent, but may produce rasping screech or hissing trill. Hunts mainly for ground mammals.
Greater sooty owl
Length: M 33–36cm, F 38–43cm
Wingspan: M 82–111cm, F 101–118cm
Weight: M 490g, F 890g
Lives in south-eastern Australia forests. Large, heavily built with dark facial disc with black outline. Loud whistling screech, like a falling bomb. Hunts in forest gullies for possums, and also rats and bandicoots.
Lesser sooty owl
Tyto multipunctata Length: M 32cm, F 36cm Wingspan: M 79cm, F 90cm
Weight: M 370g, F 560g
Lives only in rainforest and other dense forest in far north QLD. Call is a bomb-whistle. Preys on small mammals and birds as well as geckos and frogs. May roost in caves. Nests in tree hollows, usually from March to May.
Tyto novaehollandiae Length: M 33–41cm, F 39–50cm
Wingspan: M 90–110cm, F 96–128cm
Weight: M 240–800g, F 545–1260g
Found in heavy forests within 300km of the coast in eastern and northern Australia, south-western WA and TAS. Has screeching hiss call. Bandicoots and rabbits are prey.