My ducks that I got a few months ago are now laying eggs IN the pond. My husband and teen are getting them out and eating them.....I cannot bring myself to do that. It's a very large pond out in the woods so they spend majority of the time in it. How can I get them to lay eggs on the ground? We do feed them on the ground and have a large, nice coop but they don't use it - we also have a dog who sometimes chases them into the pond. And Q2 - how can we tell if they are safe to eat? Other than the obvious - cracks etc.