Sunday morning I (like every day) let my 30 chickens out of their coop to free range and I also let out my two ducks. They all free range with my three dogs all day every day. Within an hour or so I went out and found both duck laying beside each other next to my pool dead. One had a small amount of blood from the mouth and the other have a very small spot of blood on the chest. That is all my son saw. One of my dogs was found laying beside them, but no blood an any of my dogs. I just don't no what happen. my husband thinks dogs but they have never hurt any of my girls before and are doing OK with them since then.