Sounds like you have a good male, usually they would start trying to mate them all at that age. If he's only mating the one I'd guess that bird is close to laying, either because he knows and/or she's letting him because she's ready.
: D so far it doesn't seem to happen more than a couple times a day, but I will definitely be keeping an eye on him. So far he has been a good boy and I don't want him beating up on this pullet, or any of the pullets. She doesnt seem very ruffled from the attention. And his female hatchmates are starting to show signs of reaching maturity, so maybe in a couple weeks he can spread the love around lol
It means his hormones are telling him to mate with them. At his age it is not about him fertilizing eggs that are not being laid, it is about flock dominance. In the mating act the one on bottom is accepting the dominance of the ne on top, at least temporarily. That can be willingly or by force. In your case it sounds like willingly, at least for now. Often with immature pullets and cockerels it is by force, which can be hard to watch.
Agreed. My experience is when hens are just a few days/week away from first lay they will cower down in submission to me or the rooster. Young roosters will interpret that as a call to mate.
