I had some pet snappers when I was a kid. Id catch the fishing for bullheads occasionally, take them home and keep them in a cattle tank for the summer and release them in the fall when it would start to get cold again. They would eat mostly frogs and toads... If you wanna catch a snapper, shoot a small bird or gopher, pull as much skin off it as you can and throw it in a pond. Most permanent ponds that dont freeze solid have snappers in them and theyll eat just about anything. I also used to collect snapper eggs in the spring, take them home and hatch them out and release the baby turtles back where they came from, or in local streams/lakes. Gotta keep the eggs upright when moving them, use a marker to put a dot on the shell before removing them from the hole. Sometimes its hard to find the nests before coons/skunks dig them up and eat them...