My 4 australorps are 21 weeks old and I am still waiting on eggs. I have 2 EE's tat are 19 weeks old and no eggs yet. My 6 Barred rock batams started laying at 16 weeks and they are still laying some what. The weather has been bad hot down here in Alabama. Around 6 weeks in a row of 96 to 101 temps with heat indexs in the 110 to 115 range. I have a feeling hat has a lot to do with it. Next 7 days looks like the same. Staurday it looks like a cold front moving in. It is suppose to be all the way down to 94. if that even holds true. High today 101. My austrlorps are big with very small combs. 3 are dark combs and one has very bright comb. ? Hmmmmm