We used kitty litter boxes, as noted above (the Tidy Cats ones) as an interim nest box. They loved them. We arranged 3 on a wooden "stand" to keep them from tipping and I added curtains across the front. They like the security of having the "roof" over head.
When we put up the big raised nest boxes, these were still the favorite for a long time, with one very determined broody deciding that this was going to be where she hatched a clutch of eggs.
If you get actual kitty litter boxes, make sure to get one that has a roof (not open), as that will help them feel more secure, and provides that "dark, cozy" area they look for. They might have to duck to get in, but in my experience, they don't mind that, so long as once they snuggle in, they have an inch or two clearance.
Another great option is using a 5-gallon paint bucket. You can buy them for a couple buck at a farm supply store. You just cut part of the lid off to provide a lip to hold the bedding in.
I'm a big fan of using a plastic liner or nest box. If an egg gets broken, or if someone poos, or if someone tracks mud in on a rainy day, you can clean them in a flash and not have to replace them or deal with the mess lingering.

When we put up the big raised nest boxes, these were still the favorite for a long time, with one very determined broody deciding that this was going to be where she hatched a clutch of eggs.
If you get actual kitty litter boxes, make sure to get one that has a roof (not open), as that will help them feel more secure, and provides that "dark, cozy" area they look for. They might have to duck to get in, but in my experience, they don't mind that, so long as once they snuggle in, they have an inch or two clearance.
Another great option is using a 5-gallon paint bucket. You can buy them for a couple buck at a farm supply store. You just cut part of the lid off to provide a lip to hold the bedding in.
I'm a big fan of using a plastic liner or nest box. If an egg gets broken, or if someone poos, or if someone tracks mud in on a rainy day, you can clean them in a flash and not have to replace them or deal with the mess lingering.
