I have a dripper that I had used a summer or two ago with a store bought bear attractant to get a couple trail cam pics of bears. It worked ok. I was curious though. Do you think that if I took blood, say elk or beef blood, and put it in the dripper would it be enough scent to pull in a variety of predators (cougar, bear, coyote, bobcat...) to the trail cam? I would really like to see if I can pull some cougar into my cam. I have seen cougar urine scent at the store marketed to keep deer out of the garden but on it is a huge waring "may attract cougars" would that be effective to bring cougars to the camera? I have heard that using scent for cougars can be unreliable unless they come right by it. Can anyone back this up or dispute it?