(1) he is alleged to act as cockatoo during these meetings(2) When living at the hotel on Thursday Island in 1891 he installed a cage of parrots and cockatoos on the verandah.(3) The foreign birds, most of these parrots and cockatoos , unfortunately need to be kept in cages.(4) Many parrots, macaws and cockatoos are also being driven close to extinction by international trade.(5) Like other cockatoos , the cockatiel has a retractable crest which it raises up and down in response to alarm, excitement and other emotions.(6) Surprisingly, parrots and cockatoos can get jealous of other pets, so if there's a new animal in the house be patient whilst your bird gets used to the newcomer.