An idea:
Remove the 2 lower roosters for a period, see how she goes. When her condition is good, return one of the roosters to the flock and watch before returning the 2nd.
They might target another hen if you remove her. Also if they are cockerels i.e. less than 12 months, you may need to determine which are good rooster material.
"free range" does not necessarily help, if they have to come to the same area for food and roosting then the hen is trapped.
The boys need time out, not her, when she is removed she loses her status even more.
Flock harmony shifts when an extra cockerel/rooster is removed, you might be surprised and find it a great change.
Remove the 2 lower roosters for a period, see how she goes. When her condition is good, return one of the roosters to the flock and watch before returning the 2nd.
They might target another hen if you remove her. Also if they are cockerels i.e. less than 12 months, you may need to determine which are good rooster material.
"free range" does not necessarily help, if they have to come to the same area for food and roosting then the hen is trapped.
The boys need time out, not her, when she is removed she loses her status even more.
Flock harmony shifts when an extra cockerel/rooster is removed, you might be surprised and find it a great change.