I have 3 week old baby chicks [[there's 4]] and I was wondering when I could put them out in my garage in the bigger brooder. But the problem is It was cold the past weeks and I wanted to know if they could handle a little bit of cold? And yes they would have a heat lamp but its about 2.5-3 feet up. When do you think I could put them out there? (avg. temp. lately was 35-45 F. but it's suppose to get warmer this week but it could inch back down too, anytime.) Thanks for any help!