My 2 mixed does currently with litters did just fine in the cold.
NY here. We have had some brutal low temps lately.
They pulled lots of fur, and made a nice hole for them in the hay,
in the nest box. I kept checking the boxes to make sure they fur
was adequate to keep them covered. They both fostered extra babies.
Now at 2 weeks, the youngsters are starting to get interested in
checking things out. I have wooden box, think step in front of the
nestbox for them, in case they come out, they can get back in.
Well it worked for the last litter I used it on
These are in big plastic dog kennel crates. So I think that helped
a lot. A bit more cleaning, but so far, it is manageable.
I have a Holland lop due today, and I am checking her often.
Same set up for her. When I had her in the wire cage, she was
messing in the nest box, no matter where I put it. In the dog
crate, the nest box is clean. Not sure why. The floor in the
crate has sawdust. I have draped the 3 crates with a blanket
to help keep the cold out. I thinked that helps a lot also.