We have a very large pair of owls that hunt on our property. They've never been a problem for my chickens, but they give my cat a hard time! The first time I saw them, my husband and I were sitting on our porch watching the cat play with a mouse. The owl came swooping out of nowhere, snatched the mouse from the cat and scared the crud out of him! The said owl just sat in a tree and ate the mouse right in front of the cat, as if to say "ha, ha sucka".
Funny stuff!
Wish I had seen that. My only encounter with an owl was the one who hit my helmet one night and almost knocked me off my bike.