Dancoyben - how many birds do you have? How old are your birds? How much space do you have?
On one hand, birds, especially birds more than a year old, this time of year, are headed into molt. Their feathers are old, and are beginning to fall out to make room for new feathers. So it is not uncommon for hens and roosters to look ragged this time of year. A week ago, my rooster was down to one tail feather. But the new ones are growing.
On the other hand, I may be misinterpreting, if you have 2 roosters and 1 hen, this is not going to work. The problem will get worse and worse.
If your roosters are fighting, I would be culling one or both roosters. You need a pretty fair size set up to keep two roosters with a flock, as in about 20-25 head of hens. Often times what happens is people get a couple of chicks, and wind up with 2 roosters and 1 hen, and they hope that if they are raised together, it will work, and it does not. Roosters will not stay nice.
If you do have a large flock, and only this one bird is getting beat up, you could just cull her. However, I think your roosters will find some other bird to fight over, aggressive behavior often starts out on one bird, but generally just gets worse and worse.
Mrs K