Question about House Mice in my garden

On reflection I think these mice may be field mice rather than house mice, never the less, the hairless one is still a mystery

well here it is again, a better video this time I think https://youtu.be/N2hsthO1KUk. I am so intrigued and would love someone to be able to tell me what sort of mouse it is.

Thanks for your reply, Chris. This mouse has only just made an appearance. I've been feeding and monitoring the mice for 4 years now and I've never seen a mouse like this. There are a lot of babies and pregnant females round at the moment but no hairless ones. I'm a little confused over whether they are House or Field mice. Some look like house and others look like field. Would both species interact?

https://youtu.be/Wu5iGciQOoU

https://youtu.be/l9JK-nZ3rk0

https://youtu.be/aXniws77L3k

https://youtu.be/O8cZ0561tvM

Since originally posting this question, said mouse has been very active - I have uploaded all my videos to my channel which can be found here.