I have a splash marans rooster who is about 5 months old. He matured early - crowing by ~5 weeks, and mating the hens for maybe the past month and a half. He has never been aggressive toward me, and has been very gentle with the hens. I have never seen him chase the hens to mate. He has always been gentle about it. Although I've just had a couple hens with him, there has never been any feather damage, and the girls seemed to like him. Okay anyway, for the past few days, he's been behaving oddly. When I let them out to free range, he will make mad dashes to nowhere in particular, with his hackles raised. The past couple days, I saw him raise his hackles at and chase the hens a few times. He doesn't try to mate when he catches up to them or anything. On a couple occasions, my calmer hen would just stand there as he ran at her, and she would just stare at him. He'd stare back, hackles raised, for several seconds. Then he'd lower his hackles and walk off. What is going on with this guy?? Should I be worried that he's turning aggressive? Or is he just nuts?