[krono]

Absolutely, I also replied to the OP's response below that I failed to specify that I was arguing parrots' ability to reason which I do believe exists to a great extend.

Regardless, speech is just another means of communication. In the end it doesn't really matter if I use perfectly articulated Swahili or just scream "aaar" at you for a few seconds as long as I get the cheeseburger with extra cheese I want from you. These parrots, much like children, just push your buttons and are quite good at finding (or negotiating) the right pattern of things to do and sounds to make to get to a certain outcome.