Depends on who I'm talking to. Since most snake people call them "normal", that's what I'll use when talking to snake people. When talking to non-snake people, I'll switch between "normal" or "regular" because that's what non-snake people seem to understand most. When speaking as a biologist or from a genetic stand-point, I'll often use "wild type", because in genetics that's what the "non-mutated" or "default" (though technically "default" isn't the right word) types are called. If I'm speaking as a biologist to non-biologists, I'll clarify the difference between "wild type" and "wild caught".