Fighting chickens huh? On the cougar thing, it is possible to have a rogue run nomad for hundreds of miles. There hunting range is anywhere from 25 to 55 sq. miles, and could be farther if you have a rogue. We had one that was even tagged that eventually was shot because it was slaughtering sheep every night for a fortnight. Its tag was for the Sierra Nevada area, and I am in the central coast of Cali.But, I could offer the guess on a bobcat as well, but you are saying that the calls it has been making is like a cougar. Have you tracked it, or has anyone found tracks? Chickens can draw in a hungry cougar, but in a general sense, they like a little bigger massed animal for those precious guts. I would try to find some tracks, and then do some comaparison investigating. Good luck! Oh, and always, when tracking, keep a weapon, a whistle, and some smarts with you at all times. You don't want to become a statistic!!!!!