The Crows

The Crows are a constant presence throughout the game, and act mysteriously intelligent for what would normally be non-sentient creatures.

Personality
As a flock of birds, it is difficult to give the Crows a specific personality. However, they congregate at the sight of the curse to an unnatural degree. Possibly, they are attracted to its presence at the house. They sit at the windowsill at all hours of the day, not even seeming to leave for sleep or food. The only way that they leave is by being driven away by the Doctor themselves.

Appearance
The Crows appear as regular birds at the beginning of the game, with beady eyes and black feathers that can be seen even during the nighttime. Up to five of them can appear at the windowsill at any given time, all in various poses.

As the curse progresses further along in Kein's body, the crows also become more and more monstrous. They begin to grow sharp teeth and multiple sets of eyes that glow in the darkness. Their mannerisms stay similar to that of the early stages of the curse, but their new supernatural features indicate the curse's progression visually.

Trivia

 * The Crows are the main reason for Cursetorn's trypophobia warning, as their various eye clusters can trigger a negative reaction in some people