I have to chicjs that are big enough to go outside but the bigger chicken pick on them in the coop so i let them free range. Everything was fine. I have a dog that likes to kill chickens. Watched her like a hawk and kept her inside the house. Then I went to the bathroom I came out and saw my dog was wet. And cold. When she goes outside she loves playing in the pond Iran outside and one of them was almost dead lieing on the door step. The big chicjens left and got into the coop i couldn't find the other chick anywhere and i even looked in the pond its not very big . nobody no nothing maybe she was hiding I don't know.