Do you have a horse trailer or a stock trailer? I use a big stock trailer as an intermediate spot between brooder and coop. It gives them more shelter than the tractor.
If you don't have any other options, I guess it will be tarp and shavings. I would definitely drag them over fresh wood chips or straw to get them off the wet ground.
If you don't have any other options, I guess it will be tarp and shavings. I would definitely drag them over fresh wood chips or straw to get them off the wet ground.