The guy who played Mr Haney on Green Acres once told a supposedly true story about a chicken at some local carnival or state fair that would 'dance' when you put a coin in the slot. He said the floor the chicken stood on was an electrically wired hot plate. That it would heat up with the coin drop.
When I was a kid, they had a chicken at Knotts Berry Farm that could play “Mary Had a Little Lamb” on a little toy piano to get a payoff of chicken feed from a machine. I remember going away quite impressed.