Gave it a shot this last weekend. First 100 yards into the hike and we came across fresh cat tracks and a turd right in the road. Hiked in another couple hundred yards and set up. Got 2 howls back from coyotes, which turned out to have been on a fresh kill we found later in the day. Hiked about 8.5 miles in snowshoes and saw some cool new country.
Never saw anything to put a bullet through but finding tracks that quickly, finding a fresh kill and having a pair respond to my calls made it a successful outing! I picked up a pretty basic Lucky Duck Rebel and used the 3 different cottontail distress calls mostly. Eventually will upgrade to a new unit that has more variety of calls, i.e. fawn or calf distress, to step my game up even more.