Palm cockatoo

I have species of cockatoo parrots available for sale which are the white or umbrella cockatoo, the palm or goliath cockatoo, sulphur crest or yellow cockatoo, galah cockatoo,salmon crest or moluccan cockatoo, redtail or the banksian cockatoo, and finally the citron crest cockatoo well trained can captitre words call names number and alphabet