Atlas of Living Australia (ALA) via https://bie.ala.org.au/species/

Greater Sooty Owl

Tyto tenebricosa

The sooty owl or greater sooty owl (Tyto tenebricosa) is a medium to large owl found in south-eastern Australia, Montane rainforests of New Guinea and have been seen on Flinders Island in the Bass Strait. The lesser sooty owl (T. multipunctata), is sometimes considered to be conspecific with this species, in which case they are then together referred to as sooty owls. It is substantially smaller and occurs in the wet tropics region of North Queensland, Australia.