I understand buff orphingtons are good broodies, but if you have to many chickens already, why are you hatching more?
A good broody hen IS the best way to add chicks to your flock.
They do all the work, no heat lamps to rig up, no boxes you have to change the litter in daily. The mom will intigrate the chicks into the flock with few problems. Saving you all kinds of work.
Overcrouding chickens is the best way to cause yourself and your flock a variety of problems and health issues.
Hatching new chicks is fun and exciting, but a responsible flock owner uses some moderation.
Are you in chicken sales bussiness?