Those aren't cougars. They're silent tan deathmissiles that home in on you from miles away, and swarm until they create pockets of territory with no survivable ground to stand on.
...we used to drive coaches to that cabin in the snow and camp on top of it, hunting them to extinction. >.>
*sudden RDR memory of discovering the glitch that let you stand 1000's of feet in the air in multiplayer*