Rabbits generally have litters of four....on the plus side....you are down three. Sorry you know I couldn't resist. Any chance the bunny nest is IN your yard? Momma bunnies will make nests right in the middle of the yard...not exactly where you'd expect them to....they just dig a small burrow. If you find the nest you could "relocate" the bunnies. I don't know what to tell ya, but I couldn't take bunny crunching noises, I know that.
When we were kids, our beagle found a nest....he'd bring one home, it would squeal, he'd drop it, we'd pick it up....he'd go get another. My mother let us keep them overnight....but she did not know we put them in a dresser drawer.