I have 3 guineas, 2 males and a female. The males have been squabbling as breeding season starts. I have been hoping that adding more females will help sort things out. A friend of mine is giving me two more because they have been bothering her neighbors. I have already picked up a female and will be getting the second whenever she can catch it. The new girl is in a small pen by herself for right now. How long should I keep her in there? Will it be difficult to integrate her into the group? What's the best way to introduce them? I don't know that it makes a difference, but these guineas (mine as well as the new ones) all hatched the same day and were raised together until they were split up at 4 months of age. They are all about 8 months old now.