In reality, that parrot is likely suffering from a respiratory infection, eye irritation, or simply regurgitating food (a sign of affection, not sadness). Parrots do not produce emotional tears. Their "crying" is purely physiological.
Parrot Cries with Its Body (Южная Корея, 1981, Jung Jin-woo)
: A widower named Choi, who is impotent, adopts two infants, Mun and Su-ryun, and raises them as siblings.
