Leave the best rooster with the hens, and put the other roosters in the other pen.If i did make another pen how would I go about growing my flock?
"Best" rooster is according to whatever traits matter to you. Personally, I would look for good health and good temperament as top priorities, then consider other traits.
That's how I would solve it. It's much less work than building more pens!Not going to lie i am leaning towards nailing an upside down traffic cone to a tree and using a pair of loppers to cull.