Crows can be seen and heard in the game circling the remains of both human and deer corpses at various random spawn locations within the game.
Crows do not appear in bad weather or at night.
They also indicate an approaching storm when seen or heard flying in the opposite direction to the bad weather.
They cannot be hunted for food but they drop Crow Feathers near corpses, which can be used to make a Simple Arrow that is shot with the Survival Bow.
Crows make different calls when a bear is nearby, even at night.