Feather-destructive behavior in pet parrots signals severe psychological distress and is one of the most common welfare problems in companion psittacines.
Feather destruction in parrots is a behavioral marker of profound welfare deficit, analogous to stereotypic behavior in other confined animals. Parrots that pluck their feathers are expressing the psychological cost of isolation, boredom, and inability to engage in natural foraging and social behaviors. Wild parrots spend most of their day foraging in complex social groups — captive parrots given insufficient stimulation redirect their intelligence inward with damaging results.