Advice needed please. I have 4 birds 3pullets and 1 cockerel they are around 4.5 months old. I was under the impression the cockerel was a pullet until he started crowing a few days ago. My questions are when do I have to separate the cockerel from the pullets and I will be getting a few more pullets soon. Will I have to keep the new pullets separate from the my current pullets or are they still young enough to just be put together. Thank you in advance.