Sun parakeet, sun conure with neck feather loss could due to infection of viral diseases, stressed, vitamin deficiency and over-preening by parent or mates, close up shot

sun parakeet conure aratinga solstitialis parrot bird species pet animal feather preen neck loss infection disease care perch stand branch stress virus viral head poor condition disorder behaviour domestic plumage unhealthy health ornithology scruffy symptom deficiency bacteria pluck moult sick ill problem destructive excessive abnormal skin damage mate patch bare