We purchased a used shed to convert to a coop; I'll be using this coop as a growout pen for juveniles, and my intention (I say this NOW) is to only use it in spring/summer/fall. Because of the barn shape, there are ledges running along the inside of each side - these are JUST the right size for a chook to get up and poop all over them: I need ideas on something basic to do so that I can make it unappealing for the chooks to roost there. I will be adding a 2 x 4 roost at about 2' up from the floor soon. My hope is that they'll like the roost more than the ledge, but I know that's not likely. Also, I need feedback on adding ventilation. The last owner did add ridge vent; however, they then tarpapered over the top of it I was wondering about using plastic floor vents - they seem like they might be just the right size, and also adjustable. I have 9" of space along the ledges: (You can also see in the pic above that the nails coming through the roof are poking through...I would hate for the chooks to be injured by them, but I've tried hammering them down, and due to the "give" that the plywood roofing has to it, I cannot get them nailed down to my satisfaction - another reason for discouraging them to roost there.) And 3" of space on the outside under the eaves - about 1 1/2" of this is drip edge, which I could likely tuck a floor vent under....I think. So - ideas on ventilation? OH, I have added a window to the back of the shed, which faces north. The window is a basement storm window that I can remove the glass in, and I placed it vertically as high as I could (the shed is 8' high at the highest point inside). Thanks for your feedback - all is appreciated & welcomed!