Wow lovely birds, everyone! Akhadley, Insanity is right, they vary wildly depending on their background. The two I have are the most slightly built of my group, I'd say they are still Large Fowl but in the lightweight category, while my Buff Orphington and Black Australorp are in the middleweight, and my Light Brahma would be heavyweight. They're about the same height as the middleweights, but with far less padding. 
