11 week old pullet

My flock of five hens are 11 weeks old and I've had them since 8 weeks. They've always had the coop and attached run, and had been spending the whole day outside until just recently. Now they'll come out (auto door) for morning breakfast, cuddle up and nap, then at some point I check the coop...

Both of my Golden comet's faces are starting to get red. (Golden Comet's also go by the name of Cinnamon Queen, Gold Star, and Red Sex Link to name a few.) They're both very friendly, although one (Her Name is Daffodil) Is significantly bigger than the other. She has the redder face, her face is...