I have a serama rooster that will fight anything. You should see him against a big dog. He will fly up and peck at his nose and then run under neath him and jump at his back. Our neighbors black lab keeps trying to get at the chickens when they are out and he runs him off. He even will stand up to my big, big rhode island red rooster( weighs about ten pounds). I love watching him and getting a laugh or two because when he is done he flies up to the top of the hen house and flaps his wings and crows. Like " just look at what I did!!!!!"