We have 18 hens (all over a year old or so) and 6 guineas (who are almost a year old). I put our 10 4-week old chicks outside in a wire cage for a bit yesterday so they could peck around at the grass and see all of the other girls/boys through the wire. Well, the chickens were all fairly cordial, however, the guineas all gathered around the cage and stared and ran aggressively with wings puffed up. So now I'm a bit concerned for the welfare of the little ones. Are guineas more aggressive than chickens when it comes to mixing the old with the young? I didn't really have this trouble last year with the little chickens' introduction to the older hens.
