My chickens are 13+ weeks old now. I've got a mix from Ideal: EE's, Wyandottes, Orps and Brahmas. I've been noticing the last couple of days that the girls are starting to get pink (some dark pink) around the eyes, wattles and combs. From what I've read, this is a sign that they're getting ready to start laying eggs. But the age is a lot lower than what I've read. Help? Do I need to hurry up and get the nest boxes in the coop or do I still have time?