I will say this much about my Buckeyes, once one starts laying, the rest aren't far behind. I started getting 1-2 eggs last week for a couple of days, then 3, and today there were 7. The weather was nice enough today that, despite this rotten winter cold, I went out and cleaned the outdoor run and tossed some straw in for them to scratch around in. I am pretty sure that most of the ones I am getting are from pullets from the size of them. Either one is eating some or they are scratching and knocking eggs around and breaking them in the nests, but I did find remains of broken eggs in the nests a couple of times this week. Today though with all the ones in there, I didn't see anything like that.
In about a week I might crank up the incubator, but with the cold blast we are expecting this weekend, that might set things back a little again. I find that light gets them laying, but if we get those 0-degree temps and colder wind blowing, it does make them a little more reluctant to lay quite as well as on 30-degree days and sunshine, and those days, I get a flood of eggs once everyone has hit their restart buttons for the season.