About your dog. Before I got chickens, my dogs were of the mind, "If it flies, it dies." Have a huge Canadian Goose population here and I love seeing them, but at times I let the dogs the dogs on them. They can become irksome x's 10,0000. They love to chase the geese and any wild turkey that happens by. Needless to say, I was scared when I got chickens. I made them sniff the birds and any aggressive behavior was corrected immediately. It took awhile and had to hold a chicken or two to threaten them with and they got the hint. They now protect the chickens and are rather spooked of them. Maybe if you threaten your dog with the rooster (when he is back to his normal self) things may slowly correct itself? This is my experience, so I have no idea if this is a good form of correction or a shot in the dark. But who knows......
