Upon Further Reflection. Chapter 11:Can the Experimental Analysis of Behavior Rescue Psychology?. Quote 5

I am quite sure of my original observation [of “superstition in the pigeon”]. I have repeated it many times, often as a surefire lecture demonstration. Deliver food every twenty seconds to a hungry pigeon and it will soon exhibit a food-getting ritual of unpredictable topography. (pp. 163-164)