Pict,
Good idea for the training (live quail). I used frozen cornish game hens for some training I put on for some Scouts last winter. Several reasons: 1) Never found a thawed critter in a winter snare 2) Safety (food borne illnesses) 3) Convenience (for me) 4) availability 5) low cost. Your technique is what I had presented to me way back when in the US Army - chickens, snakes, and rabbits. No big deal to guys who grew up hunting small game (like me), but it was astounding to me how many of my fellow students didn't have a clue... I'm sure it's more so nowadays. My 4 children (city kids) all know how to make meat from fish to snakes to birds to hogs to elk - hands-on know how. But they are unique amongst their friends in that regards.
In the USA, harvesting animals for food is primarily regulated by the state (some federal regulations for things like neotropical birds). All states that I have first-hand knowledge of do not regulate so-called "non-game" animals much if at all - it's kind of a "Paris Rule" situation rather than a "Berlin rule" situation. I've been easily able to stay on the "right side" of the laws when harvesting animals - hunting licenses for small game are relatively inexpensive.
I've eaten (legally harvested, I hastily add) many types of animals found in North America, including fish, crustacia, small non-game birds, reptiles, and mamals from mice to whales (actually, whole mice and little parts of whales, LoL). Some of the animals were tasty and some were so-so and a few were nasty. Have not eaten many bugs, and no bugs "caught in the wild" - I don't know much about that food source. I recall #3 kid eating a a grubby little fistful of earthworms once, but he was only 2 1/2 and *claims* he doesn't remember... I thought it was funny and my wife about blew a gasket at first - that toddler was FAST - then she found her sense of humor.
(Before someone asks: Paris Rule - That which is not expressly forbidden is permitted. Berlin Rule: That which is not expressly permitted is forbidden. I don't know the origins, but I've been hearing it from my Dad as long as I can remember...)
Regards,
Tom