Awww...... That's feather plucking. Parrots are intelligent animals and a parrot may start to pluck its feathers out if it is bored, stressed, sick, lacking attention, or otherwise unhappy in its home. But the feather plucking, while sometimes initially caused by illness, is a behavioral problem and not a medical issue in and of itself. Once a bird starts, it becomes an obsessive compulsive habitual behavior and almost impossible to correct even when the husbandry, stress, health, and/or mental stimulation has been fixed.
This is a terrible situation and it angers me that beautiful animals are treated this way....
Sorry - I just noticed your comment that you've raised parrots most of your life so I know you're aware of plucking and its causes. But I'll post anyhow just so someone else reading can be further educated too.![]()