Sounds about the same as my buff orpingtons. They were really good though - they got me through when most of the others have stopped, then the new girls from last year kicked in around Christmas time and the buffs stopped and have yet to start again. I reckon they will in the next few days though.
Should also say none of mine have appeared to moult in the way I'd imagined it. Only one looked a bit bedraggled. The rest have just all seemed to get more feathers and cover up more fully where they'd lost some feathers over last year. They're certainly all looking magnificent at the moment! I need to get some photos before I trim them all for breeding.
H