You know, I've been on trips like that.
Never intentionally though. A buddy and I used to spend a lot of time outdoors when we were teens, and we'd oft-times run out of food when we decided to stay longer than we originally expected.
Mostly, it becomes survival first, and there isn't much fun about it. Eating quail, dove, rabbits and such with no seasonings isn't something you'll look back on with fond memories.
I can remember my buddy talking me into getting a fire going once, and he'd go up the mountain with his shotgun to get a bunch of quail. After the fire had died down a few times, and I'd taken him more shells a time or two, he finally came back with two little quail.
No salt, cooked on a green stick held over the fire, and he ate his nearly raw because he was so hungry. Luckily, another hunter came by just after Daniel finished his quail, and offered me some salt to go on mine.
I much prefer such trips to include a dutch oven, some 'taters, onions, a can of mushrooms and another of cream of mushroom soup, and about a dozen quail.
You simmer the quail in the mushroom soup, thinned with a can of water, with mushrooms and a bit of onions added to the mix. While that's cooking, wrap a couple of 'taters in foil, and let them bake in the fire.
When it's all done, eat the potato smothered with the gravy that the quail were simmered in, and founder yourself on as many quail as you can eat.
Works just as well with rabbits and/or squirrels.
Some Bisquick is really nice to have along, too. Dutch oven bisquits go pretty good in the morning with gravy on them from the quail fixed the night before.
Yeah, I can rough it, but I won't if I don't have to!
Daryl