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see parrotparrot,
common name for members of the order Psittaciformes, comprising nearly 400 species of colorful birds, pantropical in distribution, including the parakeets. Parrots have large heads and short necks, strong feet with two toes in front and two in back (facilitating climbing
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a bird of the subfamily Kakatoeinae of the family Psittacidae. The body measures 60– cm long. A characteristic feature is the crest on the head. Cockatoos are found from the islands of Kalimantan and Flores, the Philippines, and New Guinea to the Solomon Islands, Australia, and Tasmania. There are five genera: Probosciger, Calyptorhynchus, Callocephalon, Kakatoe, and Nymphicus. These genera comprise 17 species. The birds live in forests, often near fields, and stay in flocks. They eat fruits and seeds, and their powerful beaks are capable of cracking even the very hard fruits of palm trees. In some places cockatoos seriously damage crops. They build their nest in tree hollows or in fissures of cliffs. The large cockatoos lay two or three white

Table 1. Composition of coal tar
FractionOutput (% of tar bulk)Boiling point (°C)Density at 20°C (kg per cu m)Recoverable substances
Light…………0.2–0.8To 170900–960Benzene and its homologues
Phenol…………1.7–2.0170–2101,000–1,010, 010Phenols, pyridine bases
Naphthalene……8.0–10.0210–2301,010–,1,020Naphthalence, thionapthene
Heavy (absorbring)….8.0–10.0230–2701,050–1,070Methyl naphthalenes, acenaphthene
Anthracene……20.0–25.0270–360(and to 400)1,080–1,130Anthracene, phenanthrene, carbazole, others
Pitch………50.0–65.0Over 3601,200–1,300Pyrene and other highly condensed aromatic compounds

eggs; the small birds of the genus Nymphicus lay five or six eggs.Cockatoos are often kept in cages.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


any of various parrots of the genus Kakatoe and related genera, such as K. galerita (sulphur-crested cockatoo), of Australia and New Guinea. They have an erectile crest and most of them are light-coloured
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Mortality and dispersal of juvenile galahs, Cacatua roseicapilla, in the Western Australian wheatbelt.--Aust.
Troglochernes dewae has been collected solely from bird nests, including that of the Galah (Cacatua roseicapilla), Sulphur-Crested Cockatoo (C.
Keepers at the Birmingham Nature Centre discovered the two endangered cacatua sulphurea birds worth pounds 3,500 a pair missing from their home on Saturday morning.
The birds - scientific name Cacatua Sulphurea - are described as having white feathers, with a yellow crest, grey feet, and are 33cm tall.
Among the allegedly poached birds were endangered yellow-crested cockatoos (Cacatua sulphurea) and red and blue lorys (Eos histrio).
magnificus] banksii) may breed in the center of the continent, like the galah (Eulophus [=Cacatua] roseicapillus), a roseate cockatoo, and the pink or Leadbeater's cockatoo (Cacatua leadbeateri), the budgerigar (Melopsittacus undulatus), the Port Lincoln parrot (Platycercus [=Barnardius] zon-arius), which is totally absent from eastern Australia, or the mulga parrot (Psephotus varius), which has the same geographical distribution as the mulga (Acacia aneura), a species of acacia, although it does not depend on it for nesting or feeding.
Buckland (1982) applied formal capture-recapture models to data for Northern Fulmars (Fulmarus glacialis) and Galahs (Cacatua roseicapilla), and found no evidence of senescent increases in mortality for either species.
However, no such correlation was found in another parrot species, the Long-billed Corella (Cacatua pastinator pastinator; Smith 1991), or in several other bird species (Lack 1966, Woolfenden 1978, Ross and McLaren 1981, Stromborg et al.