An old superstition that was told to my father from my grandmother and great grandmother.
My grandmother used to tell my father that if you hear an owl screeching outside at night, then something bad is going to happen soon.
This is an old superstition but I think that it was just used as a way to stop children from going outside at night because it could not have been safe, or too cold, or something of that nature. I believe that because owls are nocturnal and usually flying about I don’t see how that could be a forewarning for something bad happening. Although this could be believed because maybe owls are screeching and flying away because they see danger approaching and are trying to leave.