THE EARLIEST SIGN OF FACIAL PARALYSIS.
D000818:Animals; D001717:Birds; D005143:Eyelids; D005154:Facial Nerve; D005158:Facial Paralysis; D009424:Nervous System Physiological Phenomena; D009541:Nictitating Membrane; D012018:Reflex; D012021:Reflex, Abnormal
BIRDS; EYELIDS; FACIAL NERVE; FACIAL PARALYSIS; NICTITATING MEMBRANE; REFLEX, ABNORMAL