 The yellow @-@ tailed black cockatoo was first described in 1794 by the English naturalist George Shaw as Psittacus funereus , its specific name funereus relating to its dark and sombre plumage , as if dressed for a funeral . The French zoologist Anselme Gaëtan Desmarest reclassified it in the new genus Calyptorhynchus in 1826 . The genus name is derived from the Greek words <unk> ( <unk> ) " hidden " and <unk> ( rhynchos ) " beak " . 
