The plumage is less colorful than the plumage of other parrots, they generally have white, grey or black, and frequently with colored features in the crest, cheeks and tail.
The Cockatoos` dies consists of seeds, tubers, corms, fruits, flowers and insects. They live in flocks, that is why when they go for food, they go in flocks.
The Cockatoos have between 30 to 60 cm in length and between 300 to 1,200 g in weight. Like any parrots, the cockatoos have short legs ,strong claws and a waddling gait. Because of their large wings, the cockatoos can fly with the speed of 70 km/h.
The Cockatoos use their “voice” when they want to recognize each other, when alerting other of predators , when indicating individual moods or when maintaining the cohesion of a flock.
The Cockatoos are diurnal birds, and need daylight to find their food. They have also several characteristics methods of bathing: they may hang upside down or fly about in the rain, or flutter in wet leaves in the canopy.
The Cockatoos` nests consists of sticks, wood chips and branches with leaves. The eggs are oval and initially white as their location makes camouflage unnecessary. Only 20% of eggs laid are infertile. The incubation depends on species size, the duration may be between 20 to 29 days.
Like other parrots, the cockatoos can be afflicted by psittacoses beak and feather disease. The viral infection causes feather loss and beak malformation, and reduces the bird`s overall immunity.
Many of the cockatoos have benefited greatly from anthropogenic changes to the landscape, with the great increase in reliable seed food sources and available water, and have also adapted well to a diet including foreign foodstuffs. Preponderantly forest- dwelling species have suffered greatly from habitat destruction; in the main , they appear to have a more specialized diet and have not been able to incorporate exotic food into their diet.
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