Spring hatched chicks will be higher quality. Do you have ability to construct a breeding pen or two where hen(s) will have access to grass as she sets? I like to confine hens singly during broody phase and with rooster only as clutch being layed.
That's a good point. We have a broody pen that's a little house with a hinged lid and a partition inside so it makes a nice dark corner for a nest. It has an attached run. The whole thing is 5' x 2'. When we see a hen start to go broody, we'll gather eggs for her for about 7 days. In the meantime, she sits in the hen house in a nest box. We often put golf balls under her so that she still feels like she's sitting on something even though we're gathering the eggs every day. After we've gathered the eggs we want to hatch, we move her to the broody box. We do it about 10pm when it's really dark, and we put her on golf balls. Then we watch her for two days or so. If she's still sitting tight, we go out late one night and switch out the golf balls for the real eggs. After the hatch, we open the end of the broody pen so she can wander around the yard with her brood. We wait until she starts to take them down to the main flock before we move her into the main pasture. It's worked well for us in the past, but we have learned that only the orneriest hens make good mamas. We've had hens hatch OK, but then just stand by while the rest of the flock kills the chicks one by one. We have three dark Cornish that I bought specifically to be broody mamas. They should be old enough in the spring. I think they'll do a good job, because those girls are feisty! They're the only ones that will try to bit me when I handle them.