<ID Request> Snake in my Pool

Saw this lil guy floating around the pool deceased. It measures about 8" in length. Head is black, body orange-copperish, undercarriage was pinkish red.
Appears to be a young one, wondering if I need to be on the lookout for it's momma.

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Looks like a Western Black-headed Snake. They don't get much bigger than that, maybe a few inches longer (so it might be the momma...) Harmless to people,lives mostly underground, though I believe it does have venom to subdue its prey.