There is a mother duck that was born in my neighbor hood pond that has laid eggs of her own. I noticed her sitting on the eggs about a week ago. days later I noticed her walking the neighbor hood, and she is no longer sitting on her eggs. I bought a incubator and took two of her eggs. They have been in the incubator for 3 days now, I am unsure if they are alive. So far there is no foul smell. How long should I wait and what signs can I look for to tell if they are surviving? There are 3 male ducks that follow the female duck around and I witnessed them mating months back, so it is possible that the eggs are fertile.