Today was a rough day. My favorite "Americana" (EE) was dragged around the yard to the point of death by my 10 month old Great Pyrenees. I had to finish her off. Brutal. Have never seen my dog do this before the introduction of a recent cockerel to the flock. New cockerel's introduction did not seem to bother them much but it has spurred the death of 2 laying hens which were my favorites. The first was Pearl.. a black sex link hen with a lot of copper on her neck who laid a darker speckled egg every single day without fail. The second was Sweetheart .. the most reliable sky blue layer with a silver neck and partridge pattern. She always wanted in my lap. I am really MAD at this dog and not sure about the cockerel. At this rate, my entire flock will be destroyed in anther week. The problem is - they never wanted to escape the run before and now they want to get away from the teenage boy cockerel... but the dog is free all morning. I normally swap them in the afternoon - free range chickens and put dog on runner/in kennel. I am really bummed that my only blue layer is gone. Bad dog.