When I had my first flock around 50 years ago, the birds had a coop but they were allowed to free range they didn't have a run/pen, but things are different now. Back then I didn't loose any birds to predators but I certainly have over the past several years. Everything likes chicken and if...
Have you figured out what killed your birds yet? Put up a game camera if you have one. I have several up on my property and regularly see predators on the cameras. Mostly at night here and mostly coyotes. The predator probably has and will be back. I have noticed from my cameras that many...