While a lucky shot I also had plenty of bad luck.
This is in Muir Woods, just above the paved trail. We were walking and finally saw the owl when we were just under. For several moments the questions was if it's a prank or real until it moved.
I had the XT-1 with the 18-55, a little short but was able to get several shots.
Then my memory card filled. Got a new one but the owl flew at the edge of the stream where it caught something that was moving and trying to escape. A little too far so I quickly changed the lens to the 55-200 (a mistake in retrospect). Tried to take another shot but my battery died. Got a new battery in but the thing escaped before I was ready and the owl flew to another tree where I got many shots but none that interesting.
As you may know it's very dark in there and it was afternoon anyway so ISO 6400 and low exposure times were a must. Technically the photo quality is borderline, I had to crop and the owl is of course lit up in post processing which is less real but that's how it felt when I saw it just above me. Quite noisy and barely sharp enough, but good enough for at least an 8x10.