Hello, I just purchased six hens (2 RIR, 2 Barred Rocks and 2 Golden Comets) and the seller said they were about 8 months old and he had taken them off layer feed because he didn't want to mess with eggs this winter. He also said they'd start laying again if I gave put them back on layer feed. They arrived at my house on Saturday and I started feeding them the layer pellets immediately. Realistically, how soon should I expect them to start laying again? Is there a "reboot" period? Thanks!