How long after a hen has started laying her first eggs do you wait to incubate? My RIR and RSL have started laying and I would like to get another batch ready to be brought up.
I assume you have a rooster that is actively mating these pullets? If so, I would wait 2-3 months because pullets often have quite a few anomalies with their egg laying during that initial period and it may well lend itself to sporadic fertility and possible chick deformities.