The Pinkertons
03-12-2016, 06:58 AM
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Credits=World parrot trust
Wikipedia
Gang-gang Cockatoo
Callocephalon fimbriatum)
Species Profile
Genus: Callocephalon | Species: fimbriatum
Size:
33-35cm (12.8-13.6 in)
Weight:
240-330g (8.4-11.5 oz.)
Races including nominate:
one
Colourization Adult:
Male-in general dark grey, the feathers scalloped pale grey/white; bright orange/red crest and head; secondary coverts suffused dull green; dark grey tail. Bill horn in colour. Eye dark brown. Female-dark grey head and crest; upperparts strongly barred with pale yellow, underparts heavily barred orange to green/yellow; undertail barred grey/white.
Colourization Juvenile:
As in female but with more red in crest (male) and dark grey crest (female); crest shorter with less filaments; more evident barring on tail.
The gang-gang cockatoo was most often allied with the white cockatoos of the genus Cacatua. This has always been controversial due to the unusual appearance and coloration of the bird, especially its sexual dichromatism. New research has finally resolved the matter, with the gang-gang cockatoo being recognized as a distinctive early offshoot of the calyptorhynchine (dark) cockatoos. Considering the robust phylogeny of the cockatoos now established, a comparison of characters gained and lost during the evolution of cockatoos suggests that the gang-gang cockatoo—while of course much changed and adapted during the perhaps 20 million years since its last common ancestor with any other living species lived—is probably still very similar in overall appearance to how the earliest cockatoos would have looked, and certainly the most primitive-looking of the species alive today.
Call:
Described as croaking screech. Soft growling while feeding
Did You Know?
The Gang-gang is one of only two cockatoos (the other being Major Mitchell's) with red anywhere on its head.
Credits=World parrot trust
Wikipedia
Gang-gang Cockatoo
Callocephalon fimbriatum)
Species Profile
Genus: Callocephalon | Species: fimbriatum
Size:
33-35cm (12.8-13.6 in)
Weight:
240-330g (8.4-11.5 oz.)
Races including nominate:
one
Colourization Adult:
Male-in general dark grey, the feathers scalloped pale grey/white; bright orange/red crest and head; secondary coverts suffused dull green; dark grey tail. Bill horn in colour. Eye dark brown. Female-dark grey head and crest; upperparts strongly barred with pale yellow, underparts heavily barred orange to green/yellow; undertail barred grey/white.
Colourization Juvenile:
As in female but with more red in crest (male) and dark grey crest (female); crest shorter with less filaments; more evident barring on tail.
The gang-gang cockatoo was most often allied with the white cockatoos of the genus Cacatua. This has always been controversial due to the unusual appearance and coloration of the bird, especially its sexual dichromatism. New research has finally resolved the matter, with the gang-gang cockatoo being recognized as a distinctive early offshoot of the calyptorhynchine (dark) cockatoos. Considering the robust phylogeny of the cockatoos now established, a comparison of characters gained and lost during the evolution of cockatoos suggests that the gang-gang cockatoo—while of course much changed and adapted during the perhaps 20 million years since its last common ancestor with any other living species lived—is probably still very similar in overall appearance to how the earliest cockatoos would have looked, and certainly the most primitive-looking of the species alive today.
Call:
Described as croaking screech. Soft growling while feeding
Did You Know?
The Gang-gang is one of only two cockatoos (the other being Major Mitchell's) with red anywhere on its head.