I've heard about it from raptor rescue people, and been told that museums hate freshly-arrived great horned specimens because of the stink. Seems that one of the major components of the diet of a great horned owl in the wild is... skunks. It was so strong that when I came back to bed Peggy could smell it on me, and I had not even touched the bird. The next morning the chicken house still smelled of skunk, and had I not seen the owl I would have been certain that a skunk had broken in during the night.
Trade off -- does the owl itself do more damage to the chickens than the benefit it creates by eating all those skunks (and minks and possums and raccoons and weasels) who are fond of eggs and chickens, too?