I have a year old runner duck sitting on her first clutch of eggs in our chicken coop, she seemed in everyway to be a good and attentive mom. Yesterday we heard one egg chirping and it was in process of hatching (pipped and in the process of unzipping). Came in to check about 1.5 hours later to find the little fellow within 6-8 inches from the nest and dead. :-( Fully formed, and looked normal in every way, but judging by the legs, it didn't look like it didn't even have the chance to get up and move on its own. My question- would the mom have pushed it out of the nest?? I was concerned that the other ducks might have attacked it but there did not seem to be any signs of trauma. Any thoughts??