Owls will probably be the death of me.
Something like 33 years ago I was standing in a tree stand, leaning back against the trunk and blowing an Olt predator call. I was hard in to my "wanna be a rock star" stage of life and had the head of hair to prove it. Strands of said hair were evidently visible from the back side and got a good yank from an owl that attacked from that side of the tree.
That scared me pretty bad. What scared the crap out of me was when he circled in front to make another pass. Something about loud frantic babbles and whines coupled with waving arms will deter even the most determined owl. Or maybe it was the smell...
Another PM'er and I (you still out there Terry?) were calling together but spaced about 50 yards apart when I heard a loud thud behind me. I spun around and saw that an oak limb about 6 inches in diameter and 20 feet long had fallen in the fresh snow a mere few inches behind me. This limb had evidently been broken in some past storm and the few pounds of the snowy owl pair fluttering in the tree above me had dislodged it. Very close call.
I have a JS-512 that has one side of the speaker flattened and has an impression of the 1/4" speaker plug embossed in it from an owl attack. Owls make little or no sound in flight..... until they run in to the horn speaker of a 512 at full speed.
The same speaker is a mass of faint and not so faint scratches on the side opposite the dent. This was caused by a smaller owl with a much more delecate touch. We had been running the call for a few minutes with me scanning with a light when the guy with me whispered to ask what was on the call. Dropping the beam a bit revealed that an owl had landed on top of my speaker and was trying to clutch it with his claws. He would scratch at it a bit and then jump straight up in the air and drop back in an effort to drive those claws home, the whole time with his wings splayed in an almost successful effort to keep his balance. Me and my buddy broke in to a splitting burst of laughter at about the third itteration of the pounce. The owl, whose back was to us, did one of "The Exorcist" head spins to take a look at us and then went right back to pouncing on my poor beat up JS-512 horn speaker.
Had plenty of hawks pay a visit, though they've never been a problem.
Owls make me nervous.