No. I don't think they will accept the injured male. I think he may have established himself low on the pecking order. I would have thought the hens were already with the males, but they will be harassed. Too many males of any species are not a good thing. It would be good if you could get more females, but unless you could get some mature enough for now, the problem would still exists and even if you would get some immediately, there are other problems that could arise relating to that. They would need a lot of time cooped before being allowed out or they would just run away.
I don't know how much of a bug problem exists, but your ratio of males to females is way off. Getting something straight run from a hatchery.....one would think you would have at least 6 or 7 hens. So you really only have 2 hens that say 'buck-wheat, buck-wheat'?
Is there a problem with slaughtering a few? If you don't want to kill so many, can you kill half that amount and see if that improves things? Right now, I wouldn't think you would have so very many bugs to worry about, and in the spring your hens will start laying eggs, which you can incubate or give to a broody.......you won't want them to set. They won't be such great moms. But I'm getting slightly off topic. Really I wouldn't keep so many males with so few females. I would make use of them in the kitchen and be satisfied with the bug eating that the 3 remaining guineas provide for me.
Actually I wouldn't mind coming out like you did, because all I want guineas for is help with bugs and help in the garden and a little wild meal every now and then. So for me a trio would be fine.
