An association between feather damaging behavior and corticosterone metabolite excretion in captive African grey parrots ( <i>Psittacus erithacus</i> )

Abstract

The highest amount of CM excretion was found in FDB-HR parrots, and a positive correlation between age and CM excretion was found in H-HR. Given that the CM excretion of both PR and H-HR parrots was similar in our study, future research is recommended to investigate the specific aspects of hand-rearing to improve parrot welfare.