Feather folliculoma in the canary (Serinus canarius).
D000818:Animals; D001715:Bird Diseases / Q000473:pathology*; D002171:Canaries; D005241:Feathers / Q000473:pathology*; D005260:Female; D008297:Male; D012878:Skin Neoplasms / Q000473:pathology / Q000662:veterinary*