Im kicking out my 4 1/2 week olds. They mostly dont even sleep under their mhp anymore. The last couple nights they been sleeping on their roost. We worked all day to get the chicken coop and yard ready for them. I dont need to put that mhp out there right? I feel like the answer is no definitely not. We are in the south and temps might get in the high 40s at night but not for long. Heres a pic for feathering reference.