Roosters & Hens: we're in for some serious societal changes:
A roosters' job is to watch over the hens. Even if he has only one female, a rooster will stand near her through the day as she scratches in the dirt for morsels, and takes dirt baths. He will crow throughout the day, letting the world know, "I'm the man!"
Build your own coop! Give more freedom to your chickens (and design...)
More information: "Backyard Chickens"