I've managed to have my chicks out every day this week, today being the longest since it was actually near 50 degrees this morning, so I shoved them outside before I left for work. Husband saw a couple of them under the heating pad earlier today, but by the end of the day, they were all piled in together at the door. I should be able to shove them outside before work again tomorrow, but obviously, there's no guarantee that they'll actually use the MHP. When I put them out this morning, I put them under the MHP one at a time as I pulled them from their tote and held them up, briefly, so they could get a feel for the heat. A few friends have mentioned blocking their space to force them to be around the heat source more, but they're getting so darn big that I'm still hesitant. They were squabbling in the brooder cage inside a couple of days ago and I see that becoming a thing if I continue to keep them in a smaller space. I'm actually considering a redesign for the MHP that won't feel so "creepy" for them. I'll post it if I can get it done this weekend.
They'll be 5 weeks old this weekend. If I keep putting them outside every day, is it reasonable that I could just force them to stay outside overnight around 6 weeks of age? I've tried placing them under the MHP in the evenings, but with 13 of them, they wander back out before I can get another under it with them, or they come out as a team.
At those temps and that age, they could go out in the coop for good and without any heat source at all. Just give them access to roosts or a huddle box if they still want such a thing and let them decide where to be.