I'm a long time backyard hen keeper and was thinking of adding a few (2) guineas to my flock. Based on what I've read on the discussion threads, it appears chickens and guineas can share a coop and free range together but it seems guineas have more of a "pack" instead of flock mentality. Could I introduce just two birds to my flock of 10 hens after raising them separated until they're adult size? Or do you need to have more birds. Will just having two guineas cut down on the chances they'll gang up on a hen? If both of them are male, will they fight like two roosters would? Thanks for your responses.