What are some of the owls enemies?

Answer 1

Hawks and Eagles are often considered mortal enemies of owls, If they were to come across each other during the day, it is more than likely that they would attempt to kill each other. In fact this is occasionally photographed at my local Golf courses. In one incident a Bald eagle was photographed having a meal of a great horned owl. Larger owls will even sometimes kill smaller owls. (Great horned owls will not hesitate to make an easy meal of a barn owl.)

Furthermore, Corvids/Crows will merciously pester owls by swooping at them if they are spotted in a tree during the day. This behaviour is called mobbing. Groups of crows will furiously mob the owl until it moves on or they themselves leave the area. Most birds learn this behaviour at a young age, as owls are perceived as a dangerous threat.