Foraging ‘enrichment’ as treatment for pterotillomania

This study was performed to determine whether foraging ‘enrichment’ reduces self-directed psychogenic feather picking (pterotillomania) in parrots. A positive correlation between increased foraging time and improvement of feather score was hypothesised. Eighteen pterotillomanic African grey parrots (Psittacus erithacus) were randomly assigned to experimental and control groups in a crossover design for two 1-month-periods. The experimental […]