I had 2 chicks hatch under my broody Polly last week. They are 12 days old today, and out in the run and our large yard with the flock of 10 adult hens. Polly is doing a good job of taking care of them and they still sleep under her wings at night. I don't see them under her much during the day and it's about 50 or less in the morning. Will they be okay? It's also going to be down to the 30's at night this week. Should I heat the coop up for them, or will they be alright under her wings? Also, when they're all together like this, how do I make sure they eat their food and not the adult layer food? I give them cooked eggs, worms, greens, and milk or yogurt every day, but they also have access to the layer food that the other hens are eating. Should I just stop worrying since they look and act healthy? Thanks in advance!