In summary, I have in this study demonstrated that  early cognitive stimulation in form of a series of learning tasks may affect behaviours used to describe personality in adult red junglefowl. In turn, this study supports the possibility that cognition affects personality traits. However, not all behaviours were affected by the stimulation. For that reason, further studies are needed to investigate the directionality of the relationship between cognition and personality including mechanisms and stimulations that could trigger an alteration of behaviours.