I found this great robotic vehicle using parts from pololu and I have an african grey parrot that would love it. It is the bird buggy, pololu.com/blog/96/bird-buggy
The guy who made the original posted all the information for the bird buggy at sites.google.com/site/birdbuggy109/
Picture below. Please send your credentials and price to jeaninem71@aol.com.
Thank you,
Jeanine