I may have scored a first here. Roughlee Handled has given up on this problem and sent me to start a new thread.
I have three troublesome pullets who won't go to sleep in the henhouse. They get into the hedge and it is impossible to extricate the little blighters as they are not on it but IN it. It is an old dense hedge 10 feet high and over 2 feet deep of tightly criss-crossing little branches and still in full leaf so you can't actually see them either, even if you stick your head into it (painfully scratchy). Oh and I forgot to say it is 60 feet long.
The coop is clean as far as I can tell and the other 9 hens have no issues with sleeping in there. If I thought perhaps they just didn't like going in with the established flock, that would be fair does. But they had the little quarantine coop when they first came, and as soon as they were allowed out they took to roosting in the hedge. Perhaps that is what they were used to on the farm - I didn't think to ask. They fly like no-body's business as well, although radically clipped wings and plastic plant mesh festooning the run has greatly limited their scope. And they can squeeze through tinly gaps that the other hens can't even see. But that is all fixable. It's the roosting outdoors that worries me.
I would be much much happier locking them in the hen house if I could get to them before they roost, but they roost before anyone else has gone to bed, and if I open the pop hole to let the others get to bed they run out again and up into the hedge... sigh. I am beginning to think that if they are so bone headed they deserve to be fox fodder