| Line 14: | Line 14: | ||
==Behaviour== | ==Behaviour== | ||
| + | Birds breed in monogamous pairs, using tree hollows for nesting. Outside of the breeding season Sulphur-crested Cockatoos congregate in large flocks, feeding on berries, seeds, nuts, roots, grubs and grain either on the ground or in trees. Typically feeding groups post one or more lookouts in nearby vantage points to watch for danger. Birds spend much of their time in play, characteristically and famously breaking and dropping branches, chewing house decking and panelling and removing rubber sealing on street lights. The species is considered a pest in agricultural areas, where it eats grain and orchard fruit. | ||
| + | |||
==Bird Song== | ==Bird Song== | ||
An extremely loud raucous screech, ending with an upwards inflection. Commonly uttered during flight. | An extremely loud raucous screech, ending with an upwards inflection. Commonly uttered during flight. | ||
Revision as of 00:19, 6 February 2008
- Cacatua galerita
Identification
The Sulphur-crested Cockatoo is a large white cockatoo (typically measuring 45-50cm). It has a distinctive long yellow crest, and a yellow wash over the ears and under the wings and tail. Sexes are similar, however they can be distinguished on eye colour. Males have dark brown eyes while females have a more reddish-brown eye. Juveniles resemble adults.
Distribution
The Sulphur-crested Cockatoo is widespread and common in eastern and northern Australia from Adelaide in the west and Tasmania in the south to Cape York and across to the Kimberly in the north. There is a feral population established in Perth, Western Australia. The Sulphur-crested Cockatoo also occurs in Papua New Guinea and the Aru Islands, and there are feral populations in Indonesia and New Zealand.
Taxonomy
The Sulphur-crested Cockatoo is placed with the family Cacatuidae within the order Psittaciformes. Other members of the Cacatua genus include the Major-Mitchell Cockatoo in Australia, the Yellow-crested Cockatoo, Mollucan Cockatoo and Umbrella Cockatoo in Indonesia and the Blue-eyed Cockatoo in Papua New Guinea.
Habitat
Open woodland, agricultural districts and around human settlement
Behaviour
Birds breed in monogamous pairs, using tree hollows for nesting. Outside of the breeding season Sulphur-crested Cockatoos congregate in large flocks, feeding on berries, seeds, nuts, roots, grubs and grain either on the ground or in trees. Typically feeding groups post one or more lookouts in nearby vantage points to watch for danger. Birds spend much of their time in play, characteristically and famously breaking and dropping branches, chewing house decking and panelling and removing rubber sealing on street lights. The species is considered a pest in agricultural areas, where it eats grain and orchard fruit.
Bird Song
An extremely loud raucous screech, ending with an upwards inflection. Commonly uttered during flight.
