I have 8 chickens. 2 Barred Rocks, 2 RIR, 1 SLW, 1 Buff Orpington (these 6 are 19 weeks old today), 1 White Leghorn, 1 Welsummer (these two are 18 weeks). These chickens now have red well developed combs, and wattles: 1 BR, 1 RIR, SLW, WL. Last week I started finding small brown eggs. I got one a day for 5 days. Then I started getting one soft shelled small brown egg WITH the normal small egg. Today I figured out that the Barred Rock(Betty Rubble), and the RIR(Lucille Ball) who had turned red were the layers. My Buff Orpington(Chicken Nugget) is HUGE. She is the largest of my chickens but she hasn't developed her comb and wattles yet. The SLW has had developed comb and wattles for longer than any of them but she hasn't layed yet. All of them squat for me if I put my hand on their backs except for the BO, Chicken Nugget, and the Welsummer(Miss Prissy). I think I am lucky that I have two layers already from reading the other posts. My Buff Orpington is a little piggy, and very verbal about it. I am sure when she is ready she'll probably lay a full size egg the first time! LOL!