My 4 heritage breed Buff Orps started laying at almost 31 weeks old. 2 lay one day, and the other 2 lay the next day. They seem to do this daily now but every now and then take a day off. They haven't been laying a full 2 weeks yet. My EEs are about 20/22 weeks old no eggs yet. Actually the rest of my pullets are 20/22 and no eggs. My EEs are my only hatchery quality pullets. The rest are heritage strains from a local show quality breeder. So I knew they would take longer. I was surprised that my pullets laid so late in October though. The EEs combs are getting darker but no where near as deep red as my hens combs are just before they began to lay. They started doing the squat and egg song periodically like a month before they even started laying- they made me sweat. LOL