The Cockatoos range in size from about 12 inches to about 27 inches. Those on the smaller size include Goffin's cockatoo, bare-eyed cockatoo, and the lesser sulfur crested cockatoo, while the larger cockatoos included the umbrella, Moluccan, and greater sulfur-crested cockatoos.
Expected Life Span
With good care, cockatoos can be expected to live for about 50 years (smaller species) to 80 years or more (larger species). Unfortunately, many in captivity die younger than this.
Cockatoos are very energetic and affectionate birds. They are intelligent, playful, mischevious, and they can be exceptionally loud. However, their sociability and need for affection mean they demand a great deal of time from their owners. Unable to show affection, cockatoos will become depressed or neurotic behaviors. They are somewhat excitable so sometimes don't do that well around young kids.
Cockatoos aren't as well known as some of the other parrots for their ability to mimic speech, but in general, they do have pretty good speech capabilities. There is a lot of variation between individuals as well as likely some species variation.
Cockatoos need a diverse of fresh foods along with a good quality avian pellet based diet. Pellets can be up to 50 percent of the diet and fresh foods (vegetables, fruits, grains, and More) . Seeds and seed mixes should only be used as a limited treat item since they are high in fat.