I am adding two more chickens to our flock and am trying to figure out the best way to build a temporary coop. We have an extra run that they could stay in, next to the current run, but it's too cold at night for them to not have a coop. The main coop isn't big enough to put in a cage with the two chickens in it. Is there any way to rig up a quick coop out of...I don't know...a storage bin or something to just keep them protected from the cold for a few days before being put into the main coop? If necessary they can stay in the garage, but I'm afraid they still might be cold in there too. Any suggestions?