Rooster is too rough on hens.

[50-45-1]

Why cant you get to the ones that need saddles?
If they go in a coop at night. That is the time (after dark) that its beast to handle birds.
Some roosters have poor "technique", other are just young and learning, and some are just unnessarily rough and will always be so.
Most roosters will have one or two favorites that will show more wear than the others.
Hope you figure this out.

 

[Fishsticks06]

I'm guessing they are under a year of age.
If they aren't free ranging, the rooster doesn't have to be with them all the time.
One thing you can do is put him in separate housing for 4 or 5 days a week.

Initially, I was going to do that first. I just don’t know if I have to make a new coop for him or just put him in a separated run. Also, he’s a year and a half old.

 

[Fishsticks06]

Removing him for at least part of the day may be the only solution to protect your girls.
Tell us more....
How old are these birds, in weeks or months?
How big is your coop and run, in feet by feet?
Dimensions and pics would be most helpful here.
Where are the feathers being 'torn out'?
Some birds have weak/brittle feathers.
Some cock/erels have terrible technique and/or demeanor and are incorrigible.

My coop is a 18 square feet, and my run is 108 square feet. Is that enough? I let them free range on plenty enough land around an hour daily. The chickens themselves are above a year old. And the feathers are being torn out on the saddle and parts of the shoulder.

 

[Clearwater Chicken]

Look to see if your rooster is dancing before he mounts the hen, as dancing roosters won't hurt the hens as much or at all.

 

[quackersandfern]

Why not start another bachelor flock of roosters instead? There are lots who need rescue. Or, here are some suggestions - http://www.poultrydvm.com/condition/rooster-related-mating-injuries

 

[Fishsticks06]

Look to see if your rooster is dancing before he mounts the hen, as dancing roosters won't hurt the hens as much or at all.

He dances.

 

[Fishsticks06]

That's kinda tight.....but if they range most the time that can help a bit.
Pics of coop and run....and the girls feather loss might offer some clues for a solution.

This is probably the closest image I can get without her flying away.

 

[Fishsticks06]

 

[Clearwater Chicken]

is she molting and what does the dancing look like?

 

[hayley3]

I thought that behavior was his way of testing his dominance?
My rooster did that to me.