I had my mille fluer hen sitting on eggs cause she just HAD to go Broody. She isnt isolated from the rest of the flock and the rest of the flock is NOT laying yet due to age. My ameraucans pullets keep invading her space. Last week one of the eggs was out of the box and broken, with a half developed chick inside. This week an egg went missing. The next day I found the chick's body with the marans pullets pulling at it. My last egg didn't fully develop and I had to toss it. Could the pullets be stealing and breaking the eggs or could a predator like a rat have moved it and then the pullets gotten it? My poor mille fleur and silkie hen want to sit something bad. I have more fertile eggs to give them, but should I since they have been setting for 21 days? I plan on moving them out of that part of the coop and isolating them so they can seriously set for next time.