I had 2 hens sitting on 10 eggs a peice today is day 12 for both and I took all out to candle all had developed and then died early on and began to rott all were dead. Their nests were quite damp and I noticed where water had began to leak into their nests is this what could have caused this? I have moved them into a sure proof water free nests and they are now sitting on 4 eggs a peice starting OVER! This has made the secound time I have lost eggs under a broody due to leaks into the nests.