The pictures aren't showing up for me for some reason, possibly because I'm viewing this from my phone???
Anyway, I built a new nesting box for my Californian doe who should kindle Friday. I have a metal nest box, but was advised to not use it in the winter.
The one I built I used half inch plywood for the sides, and 3/4 inch thick pine boards for the front and back.
It is 18 inches long, 9 inches tall, and 9 inches wide. The front is actually only 5.5 inches tall. For the bottom, I staples on some wire mesh, like hardware cloth, but finer, the spacing is 1/8 inch. Very tiny stuff.
I will be putting it in with her this evening, with a layer of pine bedding in it and a large amount of hay.