I am trying to plan ahead. I have a blue Cochin cockerel and a blue Cochin pullet, both 9 months old right now. I am hoping to hatch some of their eggs in hopes of getting a couple of splash Cochins from them. The pullet hasn't started laying yet (of course my other Cochin has been laying for a couple months now). I am guessing with it being winter and days are shorter she won't start laying until March or so. When would it be safe to try to hatch some of her eggs? (if I have a broody). The only thing I have read is "once eggs are full size" but I honestly have no clue when that is. This is my first group of chickens since childhood and my 3 that have started laying the eggs are still getting bigger even 3-4 months later..... I am planning on ordering some chicks this spring too and making a brooder under my poop board in the coop so hopefully they are easy to integrate in with the crew (any ideas how to go about that would be great too). But I would like to maybe have some hatch and order them around the same time so those chicks are at least close in age.......