Notes: Bulky. Highly variable in size and plumage. Female
much larger, heavier than male. Legs densely covered w. short stiff
feathers. Dark morph: very dark upperparts; deep buff under w. black
speckling; buff facial disc edges w. black rim. Contact call: a loud deep
hissing screech. In Tas only dark morph occurs. Strictly nocturnal.
Inhabits forests, woodlands w. old trees w. hollows for nesting.