BF Skinner trained pigeons to guide a glider to act as a guided missile, during WW II. Three pigeons in a nosecone pecked at a controller and a kind of voting steered the vehicle. They performed with gunshots going off around their heads, and were still accurate and able after 7 years without performing the task. Operant Conditioning can do amazing things. Its interesting that we accept some animal jobs, such as seeing eye dogs, but new uses for animals seem strange. Recently a european firm trained a falcon to take down drones.