I've been letting a few bunnies out of their cages at a time for recess. A friend gave me a little fence so they could feel grass on their feet. I thought mama bunny would like it best since she's cooped up with 8 irritating babies. I put all 9 of them in the playground. I did not know baby bunnies can climb fences with ease. They loved playing in the woodshed and under one of our outbuildings. Three got out and it took me till dark to finally catch the last one and put it to bed. The big rabbits behave and have stayed in the fence so far.