I have seven 12 week old pullets of 7 different breeds who run around in the rain all day unless i shoo them back into their covered run. They have plenty of trees and bushes, as well the porch, to hang out under if it really pours, but they certainly don't seem to mind the Portland drizzle. They do mind being stuck in their run all day. Am I being paranoid about worrying about them out in the rain? Should I force them undercover or let them roam as long as they are able to take cover whenever they would like?