Oh, no! Don't let them eat the tomato plants! They're a member of the nightshade family and are toxic to quail.
The fruit is okay, but the leaves aren't.
Huh. In my experience, the quail eat the garden. I keep my quail on the retired garden beds starting when I retire the bed. The quail destroy all of the plants, eat all of the bugs they find, and fertilize the bed. A month or so before it's time to plant I move them off of the beds to...