I lost three yesterday to a fox, and there wouldn't have been a sign of the thing except my son saw it running the birds and went outside. The fox came back today, 3 pm, same time as yesterday in broad daylight and hopped my five foot fence like it wasn't there when I let the dogs out after him. These are the first I've lost to predators, so today kept them in the run all day, no free ranging, and when I saw the fox come back in the yard, I was very glad I had the chickens locked up. And yesterday he killed three and grabbed one and ran off with it when my son went outside. There were no feathers or blood or anything anywhere, just the two dead chickens that he didn't have time to carry off. And I hear they are the very devil to catch in a trap, so I've got some planning to do.