Attached below is an amazing National Geographic video on measuring the speed of a Peregrine Falcon. The video is the best and clearest I have seen of a Peregrine Falcon in its Stoop.
I have always been fascinated with the Peregrine Falcon for its position as the fastest in the stoop of all raptors (242mph in the attached video!), its role as a keystone predator, its recovery from the brink of extinction, and that fact that they nest locally and I can watch them. Unfortunately I have yet to see one in a stoop in the wild. I hope to remedy that soon.
Thanks to grrlscientist at Living the Scientist Life for the link.