I once saw a similar event on the golf course.

I hear a loud thump behind me, and turn to the sound, and see a big hognose snake(?) on the roof of the little bathroom building. As I am trying to figure out how the heck that happened, a big red-tailed hawk hits the roof of the building after the snake. However, she can't get her claws under the snake because of the hard shingles.

Finally, they both kind of work their way down to the gutter. There the hawk gets a good grip on the snake. She launches off of the roof, and almost hits the ground, but finally starts gaining altitude with her great prize.

Awesome cell phone video material - but I was too mesmerized watching it unfold to even attempt to get my phone out of my bag!

Nature is awesome! grin