I have three hens. They are 1 1/2 years old. I know they're all girls because they all lay. This morning I was in the kitchen and heard loud crowing. The crowing went on for a good 1/2 hour. Why would a hen crow? This is not good as I'm in a subdivision and although the neighbors agreed to me having chickens, roosters were a no no. I don't want them thinking I have a rooster in the hen house!