Just (almost) finished our chicken tractor. I would like some sugestions/opinions. The tractor is 4' X 6' and 4 1/2' high. This is home to 2 Brahma pullets (5+mo.) They free range during the day (double lot with 6' privacy fence). We are in SE Michigan. The back and 2 ends are covered with thick plastic. The coop area is 4' wide X 2 1/2' deep and 2 1/2' tall and an attached 1' X 2' nest box. The roof is translucent corrigated plastic. The coop has a "drop ceiling" that is insulated and the back wall is insulated as well. There are two 6" X 4" vents at the top of the coop (with hardware cloth then wood 1" out to prevent drafts) plus the 1'X1' door to the run area. The roost is a 1 X 3" one foot high running cross-wise. (so far, they prefer to sleep on the floor of the coop) Bedding is a thin layer of DE then pine shavings then straw. Please let me know what you think. I want them as healthy and happy as possible. Thank you for your help!! Celia New Chicken lover! 2 Brahma hens!