Here's a site with two midis.. the first one is a cougar's "growl".. listen to it. It's the midi used by the BYU scoreboard.
The second sound is a cougar's "purr"
Oh, and btw, a cougar is the largest cat in North America... and the largest of the "small" cats... the Jaguar no longer exists in N. America. Get a better website.
http://www.extremescience.com/cougar.htm