Whic one can learn the most words and can speak better than others?
African Grey Parrots.
Look up videos of Alex the parrot: http://www.youtube.com/watch?v=O_Fpad20Zbk
African Grey Parrots.
The subspecies most renowned for their talking ability is the Congo, but the Timneh can actually mimic just as well, and they have a calmer disposition than the Congos and are less sensitive to change.
African gray
budgies are also very good but under rated
I know the Indian ringneck parrots can talk really well
I think it is the African Grey.
I know Australian cockatoos can mimic very well too as I once had one who could sing full verses of songs we taught him.
African greys are the best talkers.
also some species of macaws can talk