Thank you all so much for the detailed replies! I read a few of the first ones after posting and it got me thinking, so I went and had a really good search around the pen for some clues and a fresh perspective. I also had a talk to some other chicken owners in the village to get their thoughts. It appears I have made one monumental mistake, I don't have anywhere separate for them to lay! My first lot of girls always laid in the corner of the coop where they slept at night and I thought that was normal, apparently not

. With this in mind and some detective work I came across this....
They have been laying under the shed! I didn't think they could stand up under there it is so narrow?! My bad. So I need to build a laying box of some kind, which I'm on with.
I have to say though there were only 18 eggs in total. After reading these replies I believe I have various things at play, not just my stupidity. I think I could be feeding them more, so I will set up a system where they can eat at their leisure, maybe some drain pipe kind of system I have seen online. I also agree with the suggestion they are a little stressed after the move, still moulting and also it is really cold here with negative temps and frosts at night. That being said they are much happier now they have hay in the coop, it is no where near as muddy now and they clearly enjoy scratching and laying down on the hay
With regards to the question of my maths being wrong, ah, no. Unfortunately I lost two of the original girls when my site was broken into one evening last year. They opened the coop and the girls were free when I got there the next day, with two missing

- this is actually when the remaining girls began to lay less, I presumed they were upset and would kick back in the spring. I also lost a new one to an unknown condition, she wasn't looking well after the first few days in her new home, she would just stand on her own looking sad and wouldn't go to the food. I tried my best to get her to eat and she did a little but one morning I went in and found her dead, maybe too much stress for her. Oh and just to clarify, the 20 I rescued, they had 10,000 they were selling for £1. It was a commercial facility.
So I took some pictures of how things look right now, as you can see some of them have very pale combs, some are red but small. I think in a few weeks, when the weather warms up, we have a bit more daylight and I have dedicated spot off the ground for them to lay things will improve. I hope so anyway, it's costing me a fortune in food! I do love them though, they always brighten up my mornings when I see them.
Ok guys, I'll stop waffling on, here are some pictures I took.
Thank you for all your replies and advice, some of you are probably cringing at my inexperience but I'm trying! I really care for them and am always learning and trying to improve! This site is a wealth of knowledge I really enjoy seeing the beautiful breeds you guys have.
See you around the forum!

