I have about 20 chickens and 2 guinea hens I keep all together in an 8X8 coop. They have about 750 sq feet of outdoor run with a "roof" of netting attached (this is my high security anti-hawk area). Also during the nice weather I have over an acre of fenced paddock that I let them out to scratch around in. So they seem to have plenty of space and pretty good living conditions... However, my guinea hens still "attack" my chickens constantly. Basically they chase them around and try to pull out their tail feathers. Is there any way to prevent this besides getting rid of my guinea hens??? Thanks for any info you may have.