I would let it try to let it fall off but then if it doesn't fall off cut it or take a needle. If its not life threating or affecting it in anyway I would just leave it
It could be because his Creast is too big and in his eyes and he cannot locate food properly or because chickens crops empty over night as @subhanalah already said
I'm not sure about the old English game comparison because I have never owned Old English Game. But C size is bigger then B size and B size is Bigger then A size
Thank you all for entering heres your winners
1. Best Hen(s) goes to County Boy's Peppermint and Mint
2. Best frizzle cochin goes to hdowden's beautiful frizzle boy
3. Best Rooster County Boys's Rooster Bruce
4. The Best chick picture goes to Northies Chicks
5. And last but not...