Andrew Gray?loves his parrot, Pepper.?He consider Pepper to be one of the family.?Like most family members, Pepper has his quirks. Andrew noticed that whenever Pepper was allowed to roam the house, he never spoke. But, that didn't mean his little bird pooper was shut off! To save his floors, Andrew came up with an ingenious idea. He constructed Bird Buggy, an open-loop, two wheel drive, tri-cycle platform powered by a 12v battery and controlled by a microcontroller.