I live in a suburban area of eastern PA. My four chickens have been outside about six weeks now with no problems so far. About ten years ago I saw a dead coyote (I think) in the road near my house. Other than that, never seen one but I assume they are around. Healthy deer, fox and rabbit population in the area. In the last week I have been finding the bones of fawn in my yard. I believe coyotes are in the yard at night and leaving them behind. Getting closer and closer to my coop. The chickens are contained - not free range even during the day. Run is enclosed with 1/2 inch hardware cloth including an 18 inch skirt all the way around. Thoughts or suggestions for me?