Last year when one of my hens went broody, I set her up in a separate enclosure with a quiet nesting box where she successfully hatched one of 6 eggs (it was a young rooster and I blamed his age for the low fertility rate). When the hen decided she was done being a mom and it was time to integrate the baby in with the flock I was told by folks here that it would have been better if I had allowed the hen to hatch her eggs in with the rest of the flock, because she would have guarded the chick and the integration would have happened more naturally. So this year when she went broody, I tucked 6 freshly laid eggs under her and left her in with her flock. We've had all sorts of drama including other hens laying in her nest and sometimes me checking and finding her happily sitting in the wrong nest box. I marked all 6 eggs with a sharpie and in the morning when she gets off the nest to feed I've pulled any new eggs out of her nest and when I find her on the wrong nest, I've prodded her over to the correct nest. Two weeks ago one of her eggs broke, probably stepped on during the time other hens were shoving themselves in there and I was saddened to find a fairly formed chick in the broken egg. I've lost track of how long she's been sitting, several of the marked eggs have gone missing and the sharpie has warn off the rest, so I'm not sure how many of the remaining 4 that are under her are from the original 6 and how many were added later. She is still determined to hatch those eggs, but I'm wondering at what point I just take whatever is left in the nest and throw it away. Can I check the eggs she has under her for viability somehow? Daddy is a Blue Ameracauna and the eggs she has under her are all Wellsummer's. I think they'd make nice babies if any were to hatch. Other advice?