| Pink cockatoo | |
|---|---|
 | |
| Pink cockatoo with its crest raised in New South Wales, Australia | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Psittaciformes |
| Family: | Cacatuidae |
| Genus: | Cacatua |
| Subgenus: | Lophochroa Bonaparte, 1857 |
| Species: | C. leadbeateri |
| Binomial name | |
| Cacatua leadbeateri (Vigors, 1831) | |
| Subspecies | |
C. (L.). l. leadbeateri (Vigors, 1831) | |
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| Pink cockatoo range (in red) | |
| Synonyms[2] | |
Plyctolophus leadbeateriVigors, 1831 | |
Thepink cockatoo (Cacatua leadbeateri), also known asMajor Mitchell's cockatoo orLeadbeater's cockatoo, is a medium-sizedcockatoo that inhabits arid and semi-arid inland areas acrossAustralia, with the exception of the north east.[3][4][5]
Irish naturalistNicholas Aylward Vigors described the species in 1831 asPlyctolophus leadbeateri.[6] The scientific name commemorates the London naturalist and taxidermistBenjamin Leadbeater, who had given Vigors what would become thetype specimen.[7]Edward Lear painted it in his 1832 workIllustrations of the Family of Psittacidae, or Parrots.[8] Citing Lear,William Swainson gave it the namePlyctolophus erythropterus.[9]
The pink cockatoo is more closely related toCacatua than is thegalah. Its lineage diverged around the time of or shortly after the acquisition of the long crest; probably the former as this crest type is not found in allCacatua cockatoos, so must have been present in an early or incipient stage at the time of the divergence of the pink cockatoo's ancestors. Like the galah, this species has not lost the ability to deposit dilutedpigment dyes in its body plumage, although it does not producemelanin colouration anymore, resulting in a lighter bird overall compared to the galah. Indeed, disregarding the crest, the pink cockatoo looks almost like a near-leucistic version of that species. Another indication of the early divergence of this species from the "white" cockatoo lineage is the presence of features found otherwise only incorellas, such as its plaintive yodeling cry, as well as others which are unique to pink and the true white cockatoos, for example the large crest and rounded wing shape.[10]
In 2023, this species was reclassified into the genusCacatua by theInternational Ornithological Congress; although it represents a very basally diverging member of the clade, it shares close morphological, behavioural, and vocal features to other members of the genus. Due to this, the former genusLophochroa may be better considered a monotypicsubgenus ofCacatua.[10][11][12]
Prior to 2023, "Major Mitchell's cockatoo" was designated the official name for this species by theInternational Ornithologists' Union (IOC).[13] "Pink cockatoo" was its official name (with Major Mitchell as an alternative) in the 1926 official RAOU checklist, and was reinstated as the official name in 2023 following the IOC's taxonomic change.[14] The bird became linked toMajor Thomas Mitchell after he described the species in glowing terms in his books on his expeditions, calling it the "cockatoo of the interior". Mitchell himself called it the red-top cockatoo. Before thisJohn Gould had called it Leadbeater's cockatoo (derived from the species name) in 1848,[7] as had Lear in 1832.[8] Gould added that people of theSwan River Colony called it pink cockatoo, and recorded an indigenous nameJak-kul-yak-kul.[15] Other names include desert cockatoo, and chockalott, chock-a-lock, joggle-joggle, and wee juggler, the last anglicised from theWiradjuriwijugla.[7] InCentral Australia south ofAlice Springs, thePitjantjatjara term iskakalyalya.[16] Names recorded from South Australia includekukkalulla (Kokatha dialect ofWestern Desert language),nkuna andungkuna (Arrernte),yangkunnu (Barngarla), andyangwina (Wirangu),[17] andyel-le-lek (from the Wimmera), andcal-drin-ga (from the lower Murray).[18]
BirdLife Australia officially renamed Major Mitchell's cockatoo back topink cockatoo in 2023, due to Mitchell's involvement in themassacre of Aboriginal people at Mount Dispersion and a general trend to make species names more culturally inclusive.[4]
The pink cockatoo has a soft-textured white and salmon-pink plumage and large, bright red and yellowcrest.[19] Its former name referencedMajor Thomas Mitchell, who wrote, "Few birds more enliven the monotonous hues of the Australian forest than this beautiful species whose pink-coloured wings and flowing crest might have embellished the air of a more voluptuous region."[20] Pink cockatoo females and males are almost identical. The males are usually bigger. The female has a broader yellow stripe on the crest and develop a red eye when mature.[21]
The bird reaches sexual maturity around 3–4 years old. The oldest recorded pink cockatoo died at 83 years old.[22]
In contrast to those of the galah, populations of pink cockatoos have declined rather than increased as a result of man-made changes to the arid interior of Australia. Where galahs readily occupy cleared and part-cleared land, pink cockatoos require extensive woodlands, particularly favouring conifers (Callitris spp.), sheoak (Allocasuarina spp.) and eucalypts. Unlike other cockatoos, pink cockatoo pairs will not nest close to one another, so they cannot tolerate fragmented, partly cleared habitats, and their range is contracting.
Inthe Mallee region of Victoria where the galah and pink cockatoo can be found to be nesting in the same area, the two species have interbred and produced hybridised offspring occasionally.[23]
The pink cockatoo is usually found in pairs or small groups, and feeds both on the ground and in trees.[5]
The pink cockatoo is listed as endangered under theEnvironment Protection and Biodiversity Conservation Act 1999.[24]
"Cookie" was a pink cockatoo and a beloved resident of Illinois'Brookfield Zoo nearChicago from the time the zoo opened in 1934 until his death on 27 August 2016. Cookie was 83 years old and he had been retired from public display since 2009 due to ill health prior to his death.
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![Cookie, a cockatoo that lived to be 83 years old, housed in the Brookfield Zoo[28]](/mt/?noimg=&dark=on&url=https%3a%2f%2fen.wikipedia.org%2fwiki%2fFile%3aLophocroa_leadbeateri_-Brookfield_Zoo-6.jpg)
