I have a woods style coop with 16 chickens, 8 weeks old. The high section where the windows are is about 6.5 feet tall at the tallest point. We had 3 roosting boards for when they were ready to roost. They are stairstepped from 2 feet to about 4.5 ft up. We put up the high one for the leghorns, who like to roost up high. Well, it seems like some of all my breeds like to roost up high. (See sig) Up until last night, About half the chickens still piled in the corner on the floor, while the rest were on the highest roosting bar. From the highest roosting bar, they can see the 2-inch lip of the windowsill, and would fly up to try and roost up there, realize that they couldn't stay up there with one foot gripping the ledge, then fly back down. *thud* The girls are getting big. Thinking this was incredibly dangerous, Hubby ended up putting a board at the same level of the windowsill which is just under 6 feet high. It is the same distance apart as the other roosts. The other roosts are still there so they can jump down if they want. Maybe we'll build a ramp with little ladder rungs. Last night when I went to lock the girls up, they were ALL up there on the 6 ft roost squished together in a 3 ft wide spot on the roost (hooray, they're all roosting!). Since I've never raised chickens before, I wonder if - as they get heavier, will they roost on the lower roosts to each breed's capability due to full grown weight? Am I risking little broken legs? I hear that some people's chickens are roosting way up in barn rafters, and I get a general sense that they will be fine. This 24" or 36" roost height just ain't gonna work for my girls, they will find their way to the precarious perch up in the windows. Also- with this style coop, will the roosting up high conserve heat better in the winter?