great sulfur crested cockatoo large white and yellow

abusive affectionate and animal animalia animals attention aves beak beaks beautiful behaviors bird birds black bond busy cacatua captivity challenging characteristics chewing chordata cockatoo cockatoos coiled constant crested demanding destructive devote devoted distinguish exercise extreme feathers galerita great heads intelligent large lifespan movements noisy nuisance parrot parrots perched pet physical plucking psittaciformes rope self shriek species startling stimulation subspecies sulfur temperament time top toys unpredictable white wild wildlife wonderful yellow