I have thought about that but the only problem is that the batteries would freeze and you wouldn't get any thing. It has been in the lower teens every night since I have had traps out. The other problemn would be getting it close enough to pic up the sound yet far enough away to not get damaged or lost in the debris. Another thing is I don't know if all of them make a sound. I have coaght many yotes and I would say 1 out of 10-12 caught there is sign of other yotes investigating.

------------------I am really a vegetarian...., I hunt for the violence!