I've had three hens for the past year but I bought them at laying age so this is my first experience with new layers. Got my five chicks when they were a day old and they're now 18 weeks. They're a mixed flock but I'm seeing the following from them - Barred Rock Girls: Combs and wattles are getting larger every day and are bright red. They have the largest combs of all the girls. One has been squatting for the past three days. She's doing it when the larger hens get around her. Easter Egger: Her comb is red but hasn't grown much. She's been checking out the nesting boxes. Delaware: Her comb and wattles have begun to grow and they're red, just not very large. But - Good Grief - I found her singing the Egg Song this morning so well and so loud that I thought it was one of my laying hens! Buff Rock: Not much red on the comb or wattles but she's been investigating the nesting boxes. She's the least mature of all the girls. I'm thinking we might be getting close to eggs with the squatting Barred Rock and am furiously trying to integrate these two mini-flocks so they're all in the same coop. They've been sharing the same run for two weeks. Today is an experiment in sharing eating space with all feeders in the main coop. Wish us luck!