So 6 adults and 2 young ones.....yup you need at least 3 feed stations set up so the adults cannot easily guard them all.
Place a couple of feeders in different spots so the young ones can hide behind something like a hay bale and be able to eat without being seen. Do the same with water stations.
I do see that her beak took a hit.
Is she eating without seeming to be in pain?
She may need wet feed for a week or so while it heals up.
Wet feed is exactly that. Feed that warm water is added to make a mash the consistency of cooked oatmeal. It will be easier on her beak if she seems to be having trouble pecking.
How long have the new kids been in with the adults?
You might find it helpful to set up a pen so the new kids can be fed separately fora while.
I always recommend having a secure run if not for daily use then at least it is ready when the predators find your flock.
One other question... How old are the new kids?