Sometimes owls do tend to fight each other if two of them want to hunt in the same immediate area and have a conflict over prey. Although this doesn’t tend to happen frequently, it certainly can from time to time when there is a discrepancy over prey or hunting grounds.
Owls can be fairly aggressive creatures and can also do a decent amount of damage to each other if they get into a fight due to some conflict over the same hunting area. Conflicts over territory can certainly lead to fights among owls and in certain areas it can be fairly common.