Arizona's WildLife

The Arizona ridge-nosed rattlesnake (Crotalus willardi willardi) is a small, rare, and strikingly beautiful rattlesnake found in the mountainous regions of southeastern Arizona. It is easily recognized by the distinctive raised white ridges along its nose and its patterned brown or gray body, which provides excellent camouflage among rocks and leaf litter. This species is highly elusive and secretive, often hiding under rocks, logs, or in crevices during the day, and emerging to hunt small rodents, lizards, and amphibians at night. Designated as Arizona’s official state reptile, the ridge-nosed rattlesnake is among the rarest rattlesnakes in the United States, with a very limited range and specific habitat requirements. Its presence highlights the ecological uniqueness of Arizona’s sky islands and mountain ecosystems, making sightings exceptionally special for wildlife enthusiasts.