Peregrine Falcons

http://en.wikipedia.org/wiki/Peregrine_Falcon
http://animal.discovery.com/birds/peregrine-falcon-speed.htm
http://www.canadiangeographic.ca/kids/animal-facts/peregrine_falcon.asp
http://www.defenders.org/peregrine-falcon/basic-facts

Videos
http://www.youtube.com/watch?v=lnT2joxnkqY