Groups of cockatiels may gather into large flocks that can seriously damage crops. Both females and males have the cockatiel's characteristic crest, and gray coloration, but the male has brighter facial markings. Cockatiels lay their eggs in a tree cavity, and both birds take part in incubating the eggs. Cockatiels are popular pets, and domesticated birds have been bred for several different color patterns. Single cockatiels are often trained to enjoy handling, although pairs of birds bond together rather than with a human being.
Cockatoos are magnificent crested birds found in New Guinea and Australia.
Mainly with white or black plumage, cockatoos eat seeds, fruit and sometimes insects. The sulfur crested cockatoo lives in lowland forests and savanna, and can sometimes even be seen in urban areas of northern Australia. These birds live in flocks for most of the year, although they break up into pairs during the breeding season and nest in cavities in eucalyptus trees. They can be noisy, need a lot of attention and a large cage. Amazons and macaws Amazon parrots are found, as their name suggests, around the Amazon Basin in South America.