We have 9 guineas and I have no idea if they are male or female. They are about 4 months old and we just started letting them out tto free range for a few hours during the day. I also wondered what age they will start laying as I do hope I have a few girls in the bunch. They are so funny to watch and move together like a little army but they are quite chatty too.
Your hens, if any, should start laying next spring.