Lynn M. Stone / Umbrella cockatoo (Cacatua alba), portrait. Captive.
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Lynn M. Stone / Sulphur-crested cockatoo (Cacatua galerita) perched on branch with palm leaves in background. Captive.
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Rob Drummond/ BIA / Major Mitchell's Cockatoo (Lophochroa leadbeateri) feeding on Gooseberry Cucumber (Cucumis myriocarpus), Northern Territory, Australia
Ernie Janes / Sulphur-crested cockatoo (Cacatua galerita) flock in flight over Hobart Botanical Garden Tasmania, Australia.
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Ernie Janes / Red-tailed black cockatoo (Calyptorhynchus banksii) Freycinet National Park, Tasmania, Melbourne, Victoria, Australia.
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Konrad Wothe / Galahs (Cacatua roseicapillus albiceps) drinking, Sturt National Park, New South Wales, Australia.
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Staffan Widstrand / Dead Sulphur-crested cockatoo (Cacatua galerita) with ants crawling all over it. Lowland rainforest, Karawawi River, Kumawa Peninsula, mainland New Guinea, Western Papua
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Frederique Olivier / Little corellas (Cacatua sanguinea) pair grooming each other, Pilgonaman Gorge, Cape Range National Park, Western Australia.
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Konrad Wothe / Palm cockatoo (Probosciger aterrimus) displaying, Cape York Peninsula, North Queensland, Australia.
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Konrad Wothe / Palm cockatoo (Probosciger aterrimus) perched in the wind, Cape York Peninsula, North Queensland, Australia.
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Konrad Wothe / Palm cockatoo (Probosciger aterrimus) displaying, Cape York Peninsula, North Queensland, Australia.