I was hopeing we could leave our three hens in a tractor most of the summer, moved around the yard. We don't have much in the way of preditors, due to our residental location, 6-foot high wood fence, and fenced in dogs on most sides. We were going to use a heavier wire (not chicken wire). But I'm wondering if they need a roost? Our tractor is only about 3 feet high, and DH though it would be silly to put in a roost that is only 6 inches off the ground, but what do you think? It's about 3x10, and we have three EE hens.