Ah, I see. I wouldn't bet him against a feral cat though. Sounds like he's just scaring them, which is useful too, but true feral cats will take down animals more than twice their size with far more formidable weapons than a rooster's spurs. I thought when you said 'destroyed' that you meant killed or seriously harmed but doesn't seem so. Still, good on him for being plucky though.
Best wishes.
Best wishes.