Screech owl kills Sharp Shinned Hawk

I came across this video on Youtube and I had to share it. Here's the description of the video:
"While perched and stalking birds, a Sharp-shinned Hawk fell prey to an Eastern Screech Owl. The event occurred late afternoon, 3 p.m., in Northwest Lower Michigan and about 45 feet from my back window. I have a feeding station there. The event lasted about 20 minutes. The Sharpie had been perched about 10 feet up in a spruce tree for over 45 minutes, and earlier in the day, mobbing behavior by local birds indicated the possibility there was an owl in the area. I did not witness the initial attack, but saw two large birds locked together spiraling toward the ground. As an eye witness, I can assure viewers that this was indeed an Eastern Screech Owl".