Long-billed Corellas Cacatua tenuirostris in a Red River Gum at Barmah National Park. Flocks of hundreds of these birds, as well as Little Corellas, fly around noisily, particularly in the early morn, and at sunset. The Barmah National Park is an internationally recognised wetland, listed under the Ramsar Convention, with international migratory birds needing access to these wetlands.
Date 5 April 2016, 12:00:56
Author Gypsy Denise
Source: https://commons.wikimedia.org/wiki/File:Long-billed_Corellas,_Barmah_National_Park,_Victoria.jpg

The long-billed corella (Cacatua tenuirostris), or slender-billed corella is a cockatoo native to Australia. The long-billed corella is a monotypic species. It was first described by German naturalist Heinrich Kuhl in 1820. It is one of several related species of cockatoo called corellas and classified in the subgenus Licmetis within the genus Cacatua, members of which are known as "white cockatoos".