From Ted Smith
Kestrel attacking a Barn Owl, a daily event here in North Norfolk. This was a territorial fight but usually the Kestrel attacks when the Owl has prey. It bullies the Owl into dropping the prey which is then stolen. The Owl was unharmed by the attack and carried on hunting afterwards.
Interesting TIL: Kestrel and Barn Owls fight in the wild!
Owls get hassled a lot by birds of all sizes. They know the owls are dangerous or at least tough competition.
Here’s a good post of some Great Horned Owls giving some revenge back to some Bald Eagles for previous harassment like in this post.