My neighbor who has a pole barn wants to enclose an area for some chickens. Would he need to actually build a coop inside there? It will be cycloned wire with electric fence to pervent preditors. I told him he would need some perches, nesting boxes. Does he also need a shelter area? They will be under a metal roof with only one two sides cycloned. Those sides are not open to the eliments the chicken area will be towards the back of the barn. Oh and it gets to the low thirties and only a couple days maybe high twenties. I will pass on all information and opinions.