OK, let me see if I read this right. You bought four one-year old laying hens, or you bought 4-year old laying hens? One of them was sitting on eggs (broody)? She has been setting on these eggs day and night? That sounds like she's broody. How long have you had her that she's been on the eggs? How long was she setting before you got her? It takes approximately 21 days for eggs to hatch. If you've had her for more than, say, 25 days and nothing has happened, I'd take the eggs and dispose of them. If you've had her less than 21 days, I'd let her be if you want her to hatch the eggs.I bought four year old laying hens. The woman who sold them had thirty or so, Plymouth rock and white lace chickens. One of the hens I got was sitting on eggs. The woman also gave me some of the eggs. I put them in their nesting box. The hen has been sitting on them at times. Should I take them out or wait to see if they hatch ? Also how can I tell when they lay regular eggs in the boxes compared to the ones she's sitting on ?
I see now that you said she's sitting on them "at times". What does that mean, exactly? And are the other hens laying in the same nest? If you haven't marked the ones she's setting on, it's going to be hard to tell what's what. More details would be helpful.