What is an egg squat? I have delawares, BO's and golden laced wyandottes and all are 20 weeks old. Some have very red combs and waddles others not so much. I have had chickens before years ago but they were all laying when I got them. This is my first time raising them from chicks.There is no set rule for when chickens will lay...but a good rule of thumb is 19-24 weeks on average. Think of it like humans..not every female hits puberty at the same age...kind of the same thing here.
Having said that, I have 2 BOs that are the same age. One matured much faster than the other. She laid at around 22-23 weeks and the other was 26 weeks.
You should be able to tell that they are getting closer when their combs & wattles grow & everything on their face turns bright red. Also, you should see the egg squat...Mine also made a tremendous amount of noise...