If he was aggressive towards the girls as well, that probably means he was just an aggressive bird. The trouble probably wasn't the number of roos, just this particular roo.
That seems accurate. The other male was the aggressor last season, but he never aimed for the eyes—this one was determined to blind my "good" roo. He would also tidbit treats only to eat them when the hens got close

.
That's too bad, I'm bummed for you! There will be peace now I hope.
The peace has already set in. Less crowing, no scurrying hens, no mating tug-of-war—it may just be coincidence, but I found the first eggs in days just a moment ago. I dislike this part of keeping quail, but I'm glad I did it.
On a happier note, I got some plants in the ground today!
Those three are Pink Muhly Grass, with a little trial clump of Thyme (may need a cage or pot if it becomes a "favorite"). Also got some cute garden art on sale—the mushroom caps sway in the wind!
Another cluster of three—a variety of blue fescue which should grow over two feet across. I'm letting them eat those sad violets. I'll put various potted herbs in their place, which can be rotated out to give the plants a chance to recover from the pecking.
Trying to get this adorable "mini mint" to spread. So far, the quail haven't shown much interest. I've also got some moss I intend to propagate over the log.
There were tons of coleus at the hardware store, of all places. Settled on the one with the hottest pink. Those two Creeping Jenny will eventually drape over the sides and create a little "curtain." Wondering now if it'll be too heavy for the stand...for now it's out of the aviary until the Jennys start creeping.
Another coleus with some moss, an oregano (which will need to get much bigger before subjecting it to the birds), several more mosses and a spare Creeping Jenny. I'd love a few more herbs to throw into rotation and a couple grasses that take well to being potted. The goal is to let them peck at the edible plants without killing them altogether.
It still looks fairly barren in there, and it will until the grasses take off. Even then, I'll be adding some grass huts and smaller logs/bark. The quail only really leave the old aviary during their non-resting hours, but their time in the "garden room" is spent scratching, digging, and generally being more active than usual.