Maddawg, my barred rock chickens started laying around 20 weeks, but my buff Orpington was 7 months. My Leghorn pullet started laying at 17 weeks. She is by far the best layer I have. She never misses a day. I'm hoping her eggs will start getting bigger pretty soon. She's an Ameraucana/leghorn cross and lays a pretty blue egg every day. I have more that should be laying any day, it's always an exciting time waiting for new eggs. I'm sure I don't have to tell you that.