The Chicken Tractor
A chicken tractor is normally a home built / mobile structure that houses and protects your chickens. I built our chicken tractor out of an old utility trailer that I bought second hand.
The main design involves an enclosed structure on wheels, that will keep weather and predators out. Some nesting boxes that open to the outside for collecting eggs, a mesh floor for the nitrites to fall through and some rods inside, for the chickens to roost on.
The chicken tractor is moved every week to distribute the nitrate evenly over the field and to keep the layers on fresh pasture.