Our chicks, mostly heavies, are 6 weeks old today. Most of the birds are pretty much feathered out, although a couple still have lots of pin feathers. They've been outside during the day now for several weeks (it's in the 60's and 70's F, and sunny or cloudy--we haven't had rain), but are indoors (in a stock tank in our living room!) at night. They have not had supplemental heat (lamp) for several weeks. They need to be outside now, as you might imagine, and our coop isn't finished. We have them in a net-covered, 6' w x 6' h x 12' L cyclone fence kennel on the lawn during the day. Would they be warm enough, if we enclosed a a quarter of of the kennel in tarps (allowing for ventilation) at night, allowing for roosts in there? Our temps can still get down into the high 30's at night, but are mostly in the 40's now. I've checked all the books, and although everyone talks about "when it's warm enough", nobody actually talks about temperatures! We just need something to protect them from cold and predators so they can be outside, and right now, because of a number of goofy things going sideways, we have NOTHING. Aaargh!