One of our hens began to sit on the nest all day about a week ago. We normally get about 6 - 9 eggs per day, but when she began to set, it changed to about 3 - 5 eggs a day. The children and I finally went out today to see if we could mark and count the eggs, and we marked 20 eggs, all different colors from different hens. Our setting hen is flat and spread out trying to cover all of those eggs. I feel badly for the girl. Should we intervene and take some? Is it okay to eat them at this point?