My wife and I traded for a couple of young roosters. One is a buff and the other I think is a brown leghorn. They were only around 2 months old when we got them. Fast forward 3 months: The buff orpington rooster has been crowing for a couple of weeks and has started asking like a rooster. He gets upset when the hens sound like they are distressed. I can pick up a hen, she goes to swaking, and the buff rooster comes running. The brown leghorn on the other hand, is not crowing, not acting like a rooster in anyway,,,, nothing. The buff is in with a young flock of hens that are only 4 months old. The leghorn is in with a flock of older hens that are 1 - 2 years old. My wife and I have two separate chicken yards. The brown leghorn is just as big as the full grown hens, his tail feathers are starting to come in, just he is not crowing or acting like a rooster. The flock where the leghorn is at gets laying pellets and hen scratch mixed together. The flock with the buff, because they are younger are getting chick grower.