Originally Posted by clippityclop
I have a Barred Rock sitting on 13 eggs (belonging to her and the others). I know they are in different stages of development b/c she's been sitting on them for almost 2 weeks and the other hens are still in there laying eggs in her nest! I candled 3 random eggs just awhile ago - full of veins. There are a couple that will probably hatch in the next few days and the later eggs still have a couple of weeks to go. Oh well = More chickens for the freezer!
I try not to let my hens do that .. (lay on top of a setting hen) .. because the setting hen will typically only hatch for about two days and any eggs that haven't hatched she will typically get up and abandon. Besides, the original eggs will sometimes fail to be incubated properly because of the interruptions and too many eggs to properly sit on.
Once I have a hen "hard sitting" .. I cage her to keep the other hens from adding to her nest.