I just picked up 6 new guineas this afternoon. The lady said they were about 10 weeks, but I'm guessing about 12. She knew they were about 7 weeks younger than her chickens. She wanted them for tick control, but decided they were too noisy. I believe there are 3 girls & 3 boys, so with my other two boys (my stray from last year & 1 other male left from the six I got last June) I will have 5 boys & three girls. Their wattles are really too big for 10 week olds I think. Does anyone know if they could be only 10 weeks and matured faster? Everything is going well so far. They have checked out their coop etc. I have no way of releasing them in the coop & then keeping them there, so I released them into the pen. I am so happy to have more guineas again. I will keep them penned 2-3 months and train with millet. I hope Gilbert & Whitey will show them the ropes. Sure glad breeding season is about over! My group of five had learned to stay where they belonged & come in at night until the 3 girls were eaten by foxes in the middle of the day. We are still working on that problem & won't release these until we have a handle on the problem. Just had to share.