Feather disorders.
D000822:Animal Husbandry; D000818:Animals; D000829:Animals, Domestic; D001521:Behavior Therapy; D001522:Behavior, Animal; D001715:Bird Diseases / Q000175:diagnosis / Q000209:etiology* / Q000628:therapy; D001717:Birds; D002171:Canaries; D004700:Endocrine System Diseases / Q000662:veterinary; D005241:Feathers; D005260:Female; D005499:Folliculitis / Q000662:veterinary; D006120:Grooming; D006799:Housing, Animal; D006801:Humans; D008297:Male; D009748:Nutrition Disorders / Q000662:veterinary; D011563:Psittaciformes; D012652:Self Mutilation / Q000662:veterinary