IT Farmer
Chirping
You can have more than 1 male to a pen so long as you have the proper space and a good M/F ratio.If you have 1 pen, you can have 1 male. If you have 2 pens, you can have 2 males, one in each. . .
Don't build 1 big one, make two smaller ones and keep the sets separate. You can put a removable divider in between if you think you might change your mind later. Mine love living on the ground, but you need to bury wire around the edges. My wire is lightly buried, but has a 3" wide ribbon of hardware cloth buried horizontally underground to keep the birds from digging out, and the predators from digging in. Our largest predators are rats. If you have raccoons or foxes, you will need more of a barrier than what I use.