Classic case of hierarchy. The ole struggle for dominance.
Lay into em with a cable leash and see if a lil skull dragging cools their heels.
As stated above .......if they are worth their salt.......their gonna be hard headed and mean as sin.
If your talking bout cur dogs.......just build you a second pen......its easier than trying to get them to Dr. Phil for manner lessons.
If it boils over to the woods after you have softened their heads.......hunt them separate or get ta culling.
Good advice as always