Cockatoo
| Cockatoos | ||||||||||
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 Sulphur-crested Cockatoo | ||||||||||
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Probosciger Calyptorhynchus Callocephalon Eolophus Cacatua Nymphicus | ||||||||||
A cockatoo is any of about 20 species of bird belonging to the family Cacatuidae, one of the two families making up the order Psittaciformes, which includes all parrots.
Like other members of the parrot clan, cockatoos have a characteristic curved beak shape, a zygodactyl foot (two toes forward and two toes back), and many other common features.
Cockatoos differ in their distribution—all are confined to Australia and the nearby islands— and in a number of anatomical characteristics, including the often spectacular movable headcrest, and their lack of the Dyck texture feather composition which gives many of the parrots their iridescent colours.
In general, cockatoos are larger than parrots, though there are exceptions.
ORDER PSITTACIFORMES
- Family Cacatuidae
- Subfamily Microglossinae
- Palm Cockatoo, Probosciger aterrimus
- Subfamily Calyptorhynchinae
- Red-tailed Black Cockatoo, Calyptorhynchus banksii
- Glossy Black Cockatoo, Calyptorhyncus lathami
- Yellow-tailed Black Cockatoo, Calyptorhyncus funereus
- Short-billed Black Cockatoo, ''Calyptorhyncus latirostris'\'
- Long-billed Black Cockatoo, Calyptorhyncus baudinii
- Subfamily Cacatuinae
- Gang-gang Cockatoo, Callocephalon fimbriatum
- Galah, Eolophus roseicapilla
- Long-billed Corella, Cacatua tenuirostris
- Western Corella, Cacatua pastinator
- Little Corella, Cacatua sanguinea
- Major Mitchell's Cockatoo, Cacatua leadbeateri
- Sulphur-crested Cockatoo, Cacatua galerita
- Blue-eyed Cockatoo, Cacatua ophthalmica
- Moluccan Cockatoo or Salmon-crested Cockatoo, Cacatua moluccensis
- Umbrella Cockatoo, Cacatua alba
- Red-vented Cockatoo, Cacatua haematuropygia
- Goffin's Cockatoo, Cacatua goffini
- Ducorp's Cockatoo, Cacatua ducorps
- Subfamily Nymphicinae
- Cockatiel, Nymphicus hollandicus
- Subfamily Microglossinae
- Family Psittacidae (parrots, over 330 species)