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Thesis (M.S.)

Year Degree Awarded



Bird, Learning, Psychology of Bird


Object-discrimination learning set data were obtained from 4 crows and 4- bluejays. Three of the 4- crows received $00 problems and demonstrated little or no learning set* The bluejays received 700 problems and did acquire a learning set as indicated by an average performance level of 72$ correct for Trial 2 on the last 100 problems of the experiment. Further analyses of hypothesis behavior (Levine, 1959) indicated that the crows made many errors based on position and stimulus preferences. The performance of the bluejays was characterized by consistent decreases in random responding and increases in the maximizing strategy (win-sbay~lose-shift with respect to object).