My chickens have been laying eggs all summer & although I'm kinda new to chicken raising I'm puzzled. I had 2 ducks in the coop with them until I noticed my eggs were being eaten shell & all. I found one of my ducks with "egg on his face" literally. LOL So, I decided they didn't need to be in the coop with the chickens any longer & released them to a wonderful life at our local park with a huge duck pond. Thinking I had "FIXED" the egg eating problem we went to collect our lovely eggs today & found eggs broken up in the nestbox. Now my question to you is....is this normal behavior or did the ducks teach them this habit & how do I stop it???