Initially, the female ignores or avoids him, but – provided he meets her approval – will eventually allow him to approach her.
Courtship and MatingĪs part of the courtship behavior, the male ruffles his feathers, spreads his tail feathers, extends his wings, and erects his crest. Reproduction Breeding SeasonĬockatoos only breed once a year – usually between December and March, when vegetation growth is at its peak and food is readily available. Sulphur-crested Cockatoos, along with many other parrots, are susceptible to a widespread viral disease known as Psittacine Beak and Feather Disease, which causes the birds to lose their feathers and grow grotesquely shaped beaks. These birds are very long-lived, and can live upwards of 70 years in captivity, although they only live to about 20–40 years in the wild. These parrots produce a very fine powder to waterproof themselves instead of oil as many other creatures do. These birds are naturally curious creatures, as well as very intelligent. Their loud calls are meant to travel through the forest environments in which they live, including tropical and subtropical rainforests. Vocalizations: It also has a loud voice, and in captivity is a capable mimic. A small flashlight may be helpful when assessing the eye color. They reach maturity when they are about 3 years old. Mature females have reddish brown to burgundy red eyes. There are some pale yellow / lemon colored feathers on the underside of the wings, which flash when they fly. A lowered crest can indicate calmness, friendliness and general approachability.For those approaching a cockatoo -a raised crest may be a warning not to touch them – or else risk being bitten. A raised crest can indicate that a cockatoo is displaying for its mate defending its territory or its flock, calling its flock members or a cockatoo may be expressing curiosity, excitement, surprise, fear or frustration.When the crest is lowered, the feathers fold back over the head and the crest is hardly visible.Īs attractive as the cockatoo crests are, their major purpose is communication. Corellas are smaller, however, and lack the prominent yellow crest, there are a few regional subspecies within Australia. The Sulphur-crested Cockatoo is similar in appearance to the three species of corella found in Australia. Sulphur-crested Cockatoos weigh about 28 oz or 800 grams. Surgical or DNA sexing generally required. Sexing: Iris dark brown in males, reddish brown in females. Mutual touching, preening and mating then follow.Ĭompatibility with other species: Not recommended Sulphur Crested CockatooĬourtship Display: Male struts with bobbing motion and crest raised along branch to female. They have also been recorded from various islands in Wallacea (such as Kai Islands and Ambon). In New Zealand the introduced populations may number less than 1000. They have also been introduced to Palau and New Zealand. Outside Australia, these parrots have been introduced to Singapore, where their numbers have been estimated to be between 5. The nominate Sulphur-crested Cockatoos have been introduced to Perth, which is far outside their natural range. They are also numerous in Adelaide and Southern South Australia. These birds range throughout the various climates in Australia, from Far North Queensland beyond the Iron Range Mountains, as well as parts of the Snowy Mountains. The Sulphur-crested Cockatoo is a common inhabitant of open woodland and forest areas along the east coast of Australia, extending along the northern coast and across the seas into Papua New Guinea. Please also see: Greater, Eleonora, Lesser Sulphurea Sub-species Distribution / Range
Scientists have documented 17 dance moves so far.
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