A synopsis of the birds of Australia, and the adjacent Islands /

Date between 1837 and 1838
Source https://www.biodiversitylibrary.org/pageimage/45925303
Author John Gould
Source: https://commons.wikimedia.org/wiki/File:A_synopsis_of_the_birds_of_Australia,_and_the_adjacent_Islands_BHL45925303.jpg

The powerful owl (Ninox strenua), also known as powerful boobook, is a species of owl native to south-eastern and eastern Australia, the largest owl on that continent. The powerful owl lives permanently in breeding pairs once in adulthood. These owls have been observed roosting singly, in pairs and in family groups of 3 to 4. They frequently roost during the day on branches in tall, open trees, often while still holding the prey caught the prior night.

Order: Strigiformes
Family: Strigidae
Genus: Ninox
Species: Ninox strenua (Latham, 1801)