sentences:  The blossom-headed parakeet ("Psittacula roseata") is rare and therefore not often kept as a pet, however, they are good talkers.The African ring-neck parakeet ("Psittacula krameri krameri") can also talk, but some may never learn if not trained at an early age.The Derbyan parakeet ("Psittacula derbianais") is an excellent talker.