I am reminded of the case of Alex the Parrot [1]. We all know parrots can mimic human speech very well, but the case made for Alex is that he was using actual language to convey meaning and not just parroting (pun intended) what he heard.

[1] https://en.wikipedia.org/wiki/Alex_(parrot)

In my wild imagination, I imagine parrots being taught to communicate with humans, being let loose into the jungle, and the passing on human language to their offspring. Some years hence, people would venture into the jungle and would be able to ask the parrots for directions. :)