You try moving one of them, but more often than not the males that fight within their own flock will eventually get the cajones to fight in the next flock too, and may start targeting your chickens. The 2 male Guineas that are sparring are most likely just working on establishing the pecking order in the flock, and once it starts getting cold and stormy mine always cool their jets until at least Spring. But if it continues, especially to the point of blood then the grill or crock pot sounds like a more feasible plan to me... then again I am kinda partial to the taste of Guinea tho, lol. In fact I have a few extra aggressive trouble making males that I need to deal with pretty soon so I can replace them with better colors. Have you figured out what your male to female ratio is yet (of your Guineas)? 1 male to 3-4 Hens works pretty good for all of my breeding flocks, but my full time free range flock has 8 males and 4 Hens and they do fine too... but they aren't confined to a coop/run ever so I'm sure that helps keep the peace.