In nature, they would have a small hollow under a bush, perhaps lined with a little bit of dried grass, etc. You might expect that, as in a chicken coop, they would want some shelter, privacy, and perhaps straw or such, as opposed to bare wire. With many animals kept "on wire," the hole size is important to the health of their feet. I suspect 3/8" hardware cloth would be a maximum, and perhaps even too large. As with chickens and quail, they will reach for something tastey overhead, but are by habit, ground scratchers. While chickens tend to prefer to roost, I am unsure what these or quail prefer. I knew them in Nevada where sagebrush was the only significant foliage. This is not like culinary sage, but 100 yr old bushes, that may be a typical 3 ft tall.
BillSF9c