Abstract
This article reports two experiments on the use of right-left cues by pigeons. In Experiment 1, pigeons were trained to peck a left or a right key relative to a fixed red key. Then they were tested at the red key shifted in positions. The pigeons responded to both sides of the red key. This result showed that they used the red key as a landmark, and did not use right-left cue relative to this landmark. In Experiment 2, pigeons learned to peck a left key of three keys that were arranged horizontally on the front panel and illuminated in a same color. Then they were tested at a back-panel that had the same keys as the front-panel. Subjects mostly responded to the left-side key on the back-panel. These results showed that the pigeons could use right-left cue relative to their body, and did not use right-left cue relative to the landmark in the operant chamber.
