I am trying to figure out my little visitor. First a few weeks ago i saw a smallish hole dug in the foundation with a pile of dirt, and so i put rat poison down the hole and filled it in, then nothing looked suspicious until last night I went in and my duck eggs have had the shells eaten off but not the middle of the egg (yolk) it is froze due to cold weather but not eaten. There are no broken shells around either. Also there have been eggs rolled allover the floor. I am wondering if this could be a weasel or rat or something different.. I have live animal traps set but never get anything and never any sign outside my coop. so Far no ducks or chickens have been killed or lost but want to stop my visitor before something does go missing or get killed. anyone have any suggestions please let me know.