Sadness.

A person in a white coat stands in a dimly lit, rustic interior, then the scene cuts to a close-up of a small, wide-eyed bird with large black eyes and a white face, which looks around with a concerned expression. The setting shifts to an outdoor scene at dusk where the person in the white coat stands near a fire pit while another person sits by the fire, and the bird is shown again in a close-up, its eyes reflecting the firelight.