Hi! I have had chicks for a few years now and never had one sit. I recently added six new hens and now have two that have decided give it a shot. I was letting mother nature work for this first time and figured if i didnt have good luck, i could intervene in any future hatches. I have one mama on day 17 and rolled four off the nest. Does this mean they are bad? Does she know they wont hatch already? Another mama on day 11 and everything seems good except when she comes off the nest she walks around all puffed up clucking. Is this normal? One is barred rock and clucker is RIR. I appreciate any info or advice! Thanks.