There are several photos here with chickens wearing Ruth's diapers. (as well as several who are not.
I have found it helpful to ensure that the bird gets plenty of grain (wheat, oatmeal, rice) in their diet if you plan to keep it inside. This helps keep poop more solid. Also, a bit of...
www.chickendiapers.com is the original source of chicken diapers, and in my opinion has the best ones at the most reasonable price. Each diaper is custom made to fit the measurements of individual bird. That said, there is some leeway in fit, and I have never used a diaper exclusively for a...