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- #4,881
@junebuggena is kinder than I am. I'd say by 9 weeks old they don't need the heat, but you do! I evicted my first chicks when they were 5.5 weeks old. Coop wasn't even finished, and temps were in the 20s, but out they went! That was on April 1st and I put a heat lamp out there for them. They huddled together for security and a little warmth nowhere near the heat lamp for the first two nights. So I took it out on the third day. That night it snowed, and we didn't get our last snowfall until June 6th. If I'd waited to put those chicks out until it was warm enough, they'd have been laying eggs in the brooder! They did just great! The first night out there it got down into the teens! They're tougher than they look, really!