Hello, I recently finished building a coop for my 4, 9wk old chickens just in time to shelter them from a storm front that just rolled into town. While observing them in their new habitat, I noticed they won't use the ladder I built for them to get up into the upper section of the coop. I placed one on the top section so she was forced to take the ladder down and she looked really uncomfortable. Is there a chance it was built wrong? There's about 6in between steps like I was directed on another chicken site. Any comments?