My Black Sex Linked Pullet laid an egg a day since starting.. She'll be a year old in a few months, so I expected that. The Black Mixed hens, now a year old, laid an egg every day or every other day, and are now picking up the pace as the days lengthen. I wasn't worried about supplemental lighting, but let nature take its course. I think that's the healthiest way to do things for them. The black hens came off a breeding farm and were in not so great shape, but.. after a rest, good food and sunshine, they have all come through like champs.