Clicking Is Really for the Birds!

Back in 1979 I taught a training course for keepers at the National Zoo. The zoo had a display full of abandoned cockatoos, some of which had been relinquished for behavior problems, others simply because they had outlived their owners. They were so hungry for attention and stimulation that one of my students taught a bird several tricks (hanging upside down from a branch, for instance) with the 'click' being a tap on the glass with her class ring, and the primary reinforcer nothing more than a chance to pretend to nibble her ring through the glass. Ever since, I have been touched and saddened by the loneliness and impoverished environment of many captive parrots and their relatives.