I have three young'ish polish chickens. I got them at an auction but I'm guessing they're about 10 weeks. Fully feathered but they still peep. They were in the coop but then we got hit with some pretty cold nights so I brought them in. They had been huddling outside so I just followed my instincts. We live in a very small place though and I'm desperately ready for them to go back outside. Today is supposed to be in the 40's again and nighttime temps and "better". There is one 29 coming up but otherwise they're all above freezing. Can these critters go out and stay out?