Hi there, we've had chickens since June of this year, but we got them at about 6-10 weeks old. One of our silkie girls went broody so we picked up two chicks yesterday and tucked them under her. They are 3 days old today. We live in the Pacific Northwest and it's supposed to get into the low 30's tonight/high 20's. Our coop isn't huge, but my girls have enough room to stretch out. It's about 4x4x4, with some ventilation holes at the top of the slanted roof. We have 7 girls, in addition to the two new babies. Do you think it's safe to turn off the heat lamp tonight? Do you think my silkie will be able to keep them warm? I typically turn the lamp on just so they can see to come in, then turn it off... Worried about the babies!! Help!!