Mirror presentation and playback of species-specific aggressive vocalizations as reinforcers in adult domestic chickens (Gallus gallus)

Abstract

The present three experiments, designated as I, II, and III, attempted to establish the positive reinforcinig effects of mirror and audio (the playback of recorded crows) presentation, alone and combined, for adult Domestic Chickens. The study also sought to determine if the reinforcing effects of mirror and audio presentation combined are additive.