There are lots of posts on the internet about putting cute little sweaters on your chickens. For a number of reasons, it’s best that chickens not wear clothing. My main objection to chicken sweaters is that a chicken might get a toe or other body part caught, panic as it tries to free itself, and injure or kill itself in the process. Here are a few other reasons why chicken sweaters are not a good idea.
http://www.wideopenpets.com/nine-reasons-chicken-not-wear-sweater/