STEALING FROM PIGEON FEEDERS: A PREVENTIVE MEASURE.
D000818:Animals; D001717:Birds; D010856:Columbidae; D004864:Equipment and Supplies; D011589:Psychology, Experimental; D012054:Reinforcement, Psychology; D012106:Research; D013800:Theft
BIRDS; EQUIPMENT AND SUPPLIES; EXPERIMENTAL LAB STUDY; PSYCHOLOGY, EXPERIMENTAL; REINFORCEMENT (PSYCHOLOGY)