Hi. I have three hens and two guineas. I'm unsure of the sex of my guineas. I would like to introduce a rooster to the flock but am unsure of how to do so. I have read conflicting threads. My chickens and guineas get along great, with the exception of one hen who was added later they all were raised together. My guineas are 7 months old. At this time they are in a large coop with a run and let outside weather permitting. They will not free range until spring. Any suggestions?