Current effort.
https://www.backyardchickens.com/t/1008645/english-shepherd-as-poultry-guardian
Past effort.
https://www.backyardchickens.com/t/426408/planned-poultry-guarding-dog
Prior I had used a hounds, Dalmations, Border Collie and Yellow Lab. I did not know what I was doing with those...