Yes, another thread about when those babies can go outside. I'm sorry. I'm just a terribly specific person, and there's so many vague answers out there. So I have 6 chicks who are approximately 4 weeks old now. I have a temporary coop ready for them outside where they can continue to grow safe from my adult hens. I can put a lamp in there (and plan to) and it will have plenty of hay to burrow in. Overnight temperatures right now are hovering around 30 - sometimes 27, sometimes 34. Daytime temps are in the 40's to sometimes 50's lately. They've been brooded in a round stock tank in my unheated garage, which can get relatively chilly, and I've moved the brooder lamp quite a bit higher the last few days. It's probably 3-4 feet above the level of the stock tank floor right now. They have also spent time outside in the sunshine on warmish days (mid 40's to higher) 3-4 days out of the last week. They seem to be pretty ok with being outside so far. Here's the largest and most feathered-out with the smallest and least feathered-out chick: ...with a Thomas the Tank Engine style toy for size reference, held by my sweet little chick. So. Can they stay outside with a heat lamp in the closed part of the coop overnight or should I give them another week in the garage?