Roosting bar

A roosting bar is an elevated perch inside the coop where chickens instinctively want to sleep at night, a habit left over from wild birds that roosted in trees to stay safe from ground predators. Given the option, a hen will almost always choose the highest available perch, which is exactly why placement inside the coop matters so much.

Roosting bars should sit noticeably higher than the nest boxes. If the boxes are the tallest thing in the coop, hens will sleep and often defecate in them overnight instead of using the boxes only for laying, which leaves eggs sitting in dirty bedding by morning. A flat bar, like a 2x4 turned wide side up, is generally easier on chickens' feet than a round dowel, and it lets them cover their toes with their body in cold weather to prevent frostbite.

Plan for roughly 8 to 10 inches of linear roosting space per bird so the flock is not squeezed onto one bar while another sits empty, and round the corners or edges of any wooden bar to avoid sharp pressure points. A common mistake is installing a single low bar at the same height as the nest boxes, which almost guarantees hens will roost and mess in the boxes instead of on the perch.