When they get ready to lay eggs you can start giving them oyster shells, but it's many other sources of calcium if they free range they can also get it from the rocks and stuff usually they are great foragers, I highly recommend free ranging, but you got a be aware of predators of course. Mine...
It depends I say let her sit on the eggs, but monitor her, and when they do hatch be very cautious on how she acts, and remove them if she shows any aggressive behavior towards them. It also depends if she will stay broody long enough to hatch the eggs.
So she was my first ever chicken and first chicken that ever died. We found her dead with her back end gone. It was nothing else but her top end. It also ate her intestines including the part where she produces her egg. It was no blood or any feather scattered around on the ground so I’m...