Morepork they conceded the two were easily distinguishable in appearance, so maintained the three as subspecies; the Tasmanian boobook only diverged by 2.7% from the other two, while the powerful and rufous owls diverged by 4.4% from each other. Leading from this, the southern boobook was split from the Tasmanian boobook and morepork in volume 5 of the "", however several authors, including Les Christidis and Walter Boles, contested that the data had been misinterpreted from the Norman study, which had not sampled any Australian mainland boobooks at all. They treated the three taxa (southern, Tasmanian boobooks, and moreporks) as a
Australasian shoveler Australasian shoveler The Australasian shoveler ("Spatula rhynchotis") is a species of dabbling duck in the genus "Spatula". It ranges from 46–53 cm. It lives in heavily vegetated swamps. In Australia it is protected under the National Parks and Wildlife Act, 1974. They occur in southwestern and southeastern Australia, Tasmania, and New Zealand. The male has a blue-grey head with a vertical white crescent in front of the eyes. The status of the Australasian shoveler is least concern. The common name for the species "Spatula rhynchotis" is Australasian shoveler no matter which country it is found in. It was previously categorised