This morning it was nice and cool. My son let let the chickens out of the coop to scratch around in their run like they do every day. It started raining (Gustav rain) about mid morning. When I got home late this evening the all the hens were in the run soaking wet. Looked like they had been swimming all day. Their feathers were flat and sopping. They didn't even look like chickens. Their coop door was open I assumed they'd stay inside if the weather was bad outside. I herded them back in the coop so they could dry out. Is this ok for them to get this wet? Do they have sense enough to go inside or when the weather is bad should I just keep them locked in?