Reading: cockatoo | bird
specially popular as a pet is the 50-cm- ( 20-inch- ) long sulfur-crested cockatoo ( Cacatua galerita ), with its fine-looking peak of constrict, fortunate, forward-curving feathers. This and other Cacatua species—found in northern and eastern Australia, New Guinea, and Tasmania—are chiefly white. Highly social birds, sulfur-crested cockatoo foraging in flocks numbering from dozens to 100 and congregate at night in unconstipated roosts, often in trees near water. While the batch is feeding, a few individuals stand lookout in trees nearby to alert others to danger with raucous calls. The cockateel ( Nymphicus hollandicus ) is another cockatoo that is a popular cage bird. It is a coarse shuttlecock that lives throughout a lot of Australia. More From Britannica
psittaciform
The most widespread and numerous cockatoo species is the 35-cm ( 14-inch ) galah ( Eolophus roseicapillus ). It is pink with gray wings and sweeps through australian skies in noisy, gregarious flocks. Galahs, besides known as rose cockatoo, pair for life and defend nest hollows together against intruders. They besides cooperate to incubate and feed their two–six young. newly fledged galahs gather into crown nurseries of up to 100 birds, awaiting the render of their parents with food—grass, shoots, fruit, and insects.
The 38-cm ( 15-inch ) Major Mitchell ’ s cockatoo ( C. leadbeateri ), which inhabits much of interior Australia, is besides afloat in pink, with a yellow-and-red dance band crossing its forward-sweeping crown. It is among the most beautiful of the cockatoo and the hardest to train. Largest of cockatoo and with the biggest beak among psittaciform birds is the handle, or great black, cockatoo ( Probosciger aterrimus ), 65 to 75 curium ( about 25 to 30 inches ) farseeing. This lone bird of northeastern Australia, New Guinea, and the Aru Islands has a filamentous erectile cap. It has a pierce whistlelike call, and the male grips a stick with his infantry and pounds a tree torso to produce a loud drum. Like many parrots, it is threatened by the illegal cage-bird craft.

I am broadly interested in how human activities influence the ability of wildlife to persist in the modified environments that we create.
Specifically, my research investigates how the configuration and composition of landscapes influence the movement and population dynamics of forest birds. Both natural and human-derived fragmenting of habitat can influence where birds settle, how they access the resources they need to survive and reproduce, and these factors in turn affect population demographics. Most recently, I have been studying the ability of individuals to move through and utilize forested areas which have been modified through timber harvest as they seek out resources for the breeding and postfledging phases. As well I am working in collaboration with Parks Canada scientists to examine in the influence of high density moose populations on forest bird communities in Gros Morne National Park. Many of my projects are conducted in collaboration or consultation with representatives of industry and government agencies, seeking to improve the management and sustainability of natural resource extraction.