Why Do Roosters Grow?

Why do roosters grow? It's kind of their way of singing like birds sing. They might grow for territorial reasons to kind of say, hey this is my space and I'm claiming it. In another barn at the farm there are four horses. A draft horse is a horse that we use for work. So they pull things like our wagon for wagon rides. We have two teams of draft horses called Belgians. Ruby and Rosie probably weigh around 1,800 pounds each; Max and Banner are about 2,000 pounds each.