Where the wounds are, is there any bad smell? Stick your nose right down there and sniff. If your male is also 5-6 months old, he is still considered a cockerel, and they can be really obnoxious due to hormones, and can over breed particularly the more submissive girls. Those very well could be spur or nail injuries. If he is older, he may be getting them more often as they are "new" girls.
For now, I would crate them in the run with the others, so they are safe, but everyone can still see each other. Let them rest and be safe. Better pictures of the wounds would help, if there is any sign of infection you will need to clean them up well and start applying some plain antibiotic ointment at least. Punctures in particular can get infected.