[Audio of rattlesnake rattle.] The warning of a rattlesnake. Now, just because a rattlesnake's tail sounds like a built-in maraca doesn't mean it works like one. There are no beads rattling about ...

LAS VEGAS (KLAS) — The recent warmer weather is great for walking or hiking around the Las Vegas valley but you do need to be aware as the temperature rises so does rattlesnake activity.