Mine might have been a rarity, but I had a very, very aggressive high dollar Silkie rooster. Finally got to the point where I dispatched him, despite his high value as a breeder. He gave me 9 sons and none of them were the least bit aggressive.
I have a rooster and a back up cockerel in each of my Icelandic pens and have no problem with fighting. I think primarily because I incubated and hatched every one of them and socialized them in the brooder from day one.
I also have 9 male turkeys free ranging with the chickens and not one of them has shown any aggression. Again, I think because I incubated and hatched them and socialize with them every time I go out into the poultry yard.
I have a rooster and a back up cockerel in each of my Icelandic pens and have no problem with fighting. I think primarily because I incubated and hatched every one of them and socialized them in the brooder from day one.
I also have 9 male turkeys free ranging with the chickens and not one of them has shown any aggression. Again, I think because I incubated and hatched them and socialize with them every time I go out into the poultry yard.