One of my girls makes the sweetest sounds. She coos, and sings, and talks. She's a Buff Orpington. The sounds she makes are quiet. Another one screams shrilly all the time. She's a Black Star. So my question is, which of your chickens is the best sounding? Is it consistent to the breed or individual? I can't have roosters, so while their crows are neat, they won't be a deciding factor.