I had an owl (Barn I think) that almost took my hat off while I was duck hunting one day.

I was hid out in some swamp grass waiting for shooting light. Next thing I knew a big azzed owl buzzed me and could have sunk his talons in my scalp if he'd wanted to.

The freaky part was,I never heard him coming. I just felt the air move over me as he swooped down. It wasn't until he was a few yards past,that I realized WTF it was.