Little back story first. Out of our first hatch only one chicken lived. There was no one around here that I could buy more from so he wouldn't be lonely. We have done our best to accommodate him and he is very friendly and has lots of play time so he isn't so lonely. He's also went out on warm days and interacted with the bigger chickens some but mostly they ignore him and walk away as they free range on 3 acres just about all day. We had him in a brooder in the house and he was doing great without the heat lamp. He is now 6 weeks old so we moved him out to the garage with a heat lamp as it's colder out there. He does jump out and then fluff out like he's cold so I move him back when I see this. Hes done pretty good with some nights getting down to 28-35. Now my question how do I add him to the group since he's the only one. I saw where I can add him in a dog crate but the problem I see is that he's the only one wouldn't he get very cold if he doesn't have any body heat to warm up to like the others? I'm afraid to put him just straight in there even if they do ignore him. Do I need to wait and see if our new hatches due in 2.5 weeks make it and add him to them and then move them all out at once or just go a head and make the move?