Australian cockatoos birds cockatoo grass eaters pets seed eaters sulphur crested cockatoo white white cockatoo yellow Australian black cockatoo Carnaby black cockatoo endangered large protected short-billed threatened Western Australian white cheek patches white tail panels ruffled ruffled feathers alone animal Australia avian beak beautiful beauty bird Cacatua colors colourful cute domesticated Eolophus Eolophus roseicapilla exotic eye feathers galah gray grey head looking nature parrot pink pretty Psittaciform rose-breasted cockatoo roseate cockatoo side standing stare tropical wild wildlife wings blue Cockatoos corellas demonstrative destructive docile flock garden pest grazing Noisy pet root eater show-off talker vocal yellow tail feathers pest beaks branches eucalyptus-tree fauna gum-tree native tree aviculture black body bright cacatua-galerita caged captive colours conspicuous crest curled curling curved-beak dark-grey-black-bill distinctive fluffy iconic intelligent mimicry numerous plumage popular powerful screeching strong sulphur-crested angry birdy breast cheeky claws cockatiels commanding defiant feather feathery feet funny inquisitive open mouth perch perched perching pied quarrion sapphire sapphire cockatiel sleek smile electrical-supply electricity falconiformes garden-pest overhead-power-lines perching-birds powerlines powerpoles root-eater sky suburban tail wires