Our back steps are a pretty decent sized structure, Landing, steps, landing with a turn, steps. My chickens are roosting there at night and my husband usually comes out to put them away in the coop. This drives me NUTS because they'll sit there and poop and it covers the back steps & landing (so gross). Well last night, we were out late,arrived home around 10 or 10:30 and something (we think a raccoon) attacked and killed one of the hens. Any ideas on how to get them to NOT roost there at night?