Most parrots will only mimic sounds, w/o any particular understanding of what they mean.
But parrots are quite intelligent, and (some) can - with considerable effort - be taught to interact in a rational manner.
Recent study conducted from the 1980s and onwards indicates that parrots can indeed speak and understand some human speech, in rare cases on approximately the level of a 3 year old human. Irene Pepperberg's work with Alex (an African Grey) and later with Griffin show they were able to form complex responses, and relate words to objects, numbers and verbs. Check the references below for more detail on this rather remarkable study.
Parrots do not have vocal cords, so sound is accomplished by expelling air across the mouth of the bifurcated trachea. Different sounds are produced by changing the depth and shape of trachea.
Parrots, like most other animals, employ a wide range of body behaviour, as well as vocalization, to communicate with others.
Most birds use wing flapping for communication, and this as well as beak gaping, are developed in infancy.
they repeat something you have said if you say it over and over
They just listen to you, and learn from you. It is how God made them.
Parrots do not technically speak they just repeat the noises we are making and thing of it as an animal 'sound'.
because they can
they get taught
Of course. Both of them can really talk. Humans and parrots can talk.
some parrots are really shie
They can talk a little.
yup
They talk
No, they are not. But myna birds are.
yes, i have pet ones, and they do talk to me
Yes they can be learned to talk.
No. Animals but parrots talk. Deers talk in their own language.
Because the government stole our souls and put them into parrots but parrots are retarted but our smartness evens it out so parrots can talk a little bit
Talk to them and repeat the things you want them to say often.
Yes, but only when they want.