Hey Guys, just found this thread and wanted to join in on the fun. I have a flock of 11 that are 20 weeks old tomorrow. They consist if 1 Light Sussex rooster, 4 ISA Browns, 4 RIR and 2 Americana. I have been seeing a lot of comb and waddle growth over the last 2 weeks and now have been observing a definite color change to red. Pepper(my rooster) has been attempting to mate constantly with no success from the girls until yesterday I saw them being naughty. So I think I am getting pretty close.