I wouldn't underestimate even a small owl unless it was really small like a borrowing owl or a short eared owl. So, I would make sure that run is covered well. But, mostly great horned owls are the most serious. If the owls can't get into the pen, it's probably nothing to worry about.
Does it sound like the owls are hissing a lot? Or making clicking noises? Then, it might be a barn owl. They don't usually hunt adult ducks, but could hurt a duckling under two weeks old. Great horned owls are very, very loud. The male hoots and sometimes the female will screech.
Does it sound like the owls are hissing a lot? Or making clicking noises? Then, it might be a barn owl. They don't usually hunt adult ducks, but could hurt a duckling under two weeks old. Great horned owls are very, very loud. The male hoots and sometimes the female will screech.