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Side-by-Side Comparison

Attribute	Red-tailed Black-cockatoo	Cockatiel
Scientific Name	Calyptorhynchus banksii	Nymphicus hollandicus
Order	Psittaciformes	Psittaciformes
Family	Cacatuidae	Cacatuidae
Conservation Status	Least Concern	Least Concern
Length	—	32.0 cm (12.6 in)
Wingspan	84.0 cm (33.1 in)	40.0 cm (15.7 in)
Weight	700.0 g (24.69 oz)	90.0 g (3.17 oz)
Diet	--	Seeds, grain, berries, and plant material. Forages on the ground in open areas. In captivity, …
Clutch Size	1-2	1-7
Population Trend	—	—

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Size Comparison

Body Length

Red-tailed Black-cockatoo —

Cockatiel 32.0 cm

Wingspan

Red-tailed Black-cockatoo 84.0 cm

Cockatiel 40.0 cm

Weight

Red-tailed Black-cockatoo 700.0 g

Cockatiel 90.0 g

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Habitat Comparison

Shared Habitats

🌲 Forest

Red-tailed Black-cockatoo only

None

Cockatiel only

None

Cockatiel

Open arid and semi-arid habitats including scrubland, farmland, and woodland near water in Australia.

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Song & Call Comparison

Red-tailed Black-cockatoo

Cockatiel

Song

A loud, whistled 'weet' or 'weeeet'. Males whistle a melodic series; contact call is a high nasal 'ny'. Capable of mimicry in captivity. Song is relatively simple but pleasant.

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Geographic Range & Migration

Red-tailed Black-cockatoo

Cockatiel

Interior of Australia, generally avoiding coastal areas. The second most popular pet bird worldwide.

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Conservation Status

Least Concern

Red-tailed Black-cockatoo

Least Concern

Cockatiel

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How to Tell Them Apart

Red-tailed Black-cockatoo

Cockatiel

Plumage

Wild-type males are grey with white wing patches, a yellow face, and bright orange cheek patches. Females are duller with barred tail undersides. Many captive color mutations exist.

Bill

Short, curved, grey bill

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About These Birds

Red-tailed Black-cockatoo

Cockatiel

The cockatiel is the smallest member of the cockatoo family and one of the most popular pet birds globally. These gentle, intelligent parrots can learn to whistle tunes and mimic sounds. Wild cockatiels are nomadic, traveling in flocks following food and water availability across the Australian outback.

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Related Comparisons

Cockatiel vs Arctic Tern

look-alike

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