Hello! So, my one year old duck started sitting on her eggs maybe 2 or 3 weeks ago, this is her first time sitting and she has 16! However we noticed some of them had gone rotten, and I was wondering why? Also, how likely is it that she'll actually hatch the babies successfully? If I were to take them, would it but hot enough (at around 30-40 degrees) without an incubator? Also, she doesn't sit all day and will get off to go play with the other ducks? Will they still hatch? Ad I've read that sometimes ducks kill their babies, how do I prevent that? Thanks!