ABE developed many
"brainy" bird acts over the years. An early version consisted of a
chicken, known as "Hendini," which answered
questions put to it by customers. The chicken responded in a
"yes" or " no" manner.
exhibit later evolved into a chicken in an electronic booth that gave
the appearance of engaging in Tic-Tac-Toe matches with visitors. The
exhibit was programmed so that the bird would either win or draw - even
B. F. Skinner lost to the bird when he played (see below).
The tic-tac-toe playing Bird Brain was perhaps the most notable of all exhibits
created by ABE. The act was described several times in the New
Yorker by writer Calvin Trillin. One of ABE's Bird Brain booths
was donated to the Smithsonian by Robert E. Bailey and is now housed at
museum in Washington, DC