I have a small flock of only 4. We definently have 2 Roos and I now anther one has started to crow. I actually thought this little red one was a hen, but it's now trying to crow. Is this a sign that it is a Roo or do chickens imitate each other? I've also read that some hens crow. Is this true? With possibly 3 Roos, I need to get more hens. Should I seperate the Roos so they have their own harems or let them decide how to handle it? Thank for your advice.