The Crazy Talking Parrot

Parrots are amazing little creatures that have a lot of personality and affection to give. Some species are born with an excellent ability to learn and mimic words and non-speech noises. They may do this seeking to attract the attention of their owners or fellow parrots, or simply to be funny.
The speaking potential of a parrot depends on the species, and not all individuals belonging to a particular species have the ability. With proper training and good health status, however, all of these birds can learn to talk.

The vocabulary figures for individual species of parrots mentioned in this article are the maximum apparent numbers known to the author. Note that a parrot may learn more words throughout its lifetime.