Rambo, never heard of anyone calling in cougars, maybe bobcats but never cougars but I don't know why it wouldn't work, their a predator, right? Let me know on your results in how you do. I see their signs around the kabin here depending on the time of year and only a few times have I witnessed an actual sighting in the bush, their here, but they are so reclusive and I just keep one eye looking up as I'm walking the property. Had a cougar steal some cow bones that I was going to cut up for the dogs as it made several trips to my kabin next door and take the bones. The cat was kinda ballsey making several trips right up to the kabin in the middle of the night. I kinda wonder how many a kat been eyein me from above, sometimes I just don't want to think about it, Bobby