I have actually tried this method years ago. It only worked for a short time. A trick I saw a lady use one time seemed to work real well with her parrots, cats, and dogs: She would take the parrot and allow it to bite the cat while holding the cat. She would take the cats and do the same with the dogs. The cats never bothered her parrots again and the dogs stayed clear of the cats. The thing that worked for me recently, was to buy a remote-controlled shock-collar. Yeah, sounds cruel, but it works fast! Two mild shocks to our pi-tbull taught her to NEVER chase after a bird again! I bought mine off Amazon, and you can either use a sound or a shock to frighten the dog with it. Good luck!