Yes, he does fine. I only have him in with a small handful of other chickens, younger cockerels like him, and for some reason a pullet that was smaller than her age group and was hiding out too much so I put her in with the rat pack. When he was much smaller, he was slow feathering and got his...
Here is an orpington cockerel that was born with a very short back. He has to carry his head back over his body for balance. He can eat and poop fine, just funny looking.