I have just returned from a week at the house in France, checking the renovations ( and I drove there and back - 2x12 hour days each way!). While I was there a friend came to visit, and when I was showing her round the barn we disturbed a huge brown owl that was roosting on the central beam. It flew off out the top open window. My friend, who is from Oregon, said that her family had lost two cats to owls, and they were very dangerous. I had never thought of that hazard, though of course my cats are always in at night when owls are hunting. Does anyone have any experience? Should I be worried in any way? I had hoped I had found a place with no serious predators or dangers for the kits.