Young Arizona Black Rattlesnake

A young Arizona Black Rattlesnake resting outside its den, where several larger adults have yet to emerge for the day. In time, it will darken and its pattern will fade to be the familiar dark black with yellow bands common in the region.

This same little snake, a year prior and a lot smaller, was what first gave this spot away as a rattlesnake den. Females stay at or near winter dens all year to give birth there, so a chance sighting of a neonate in August was an indication there was more to be found. Since then, I have found dozens more Arizona Black Rattlesnakes, as well as Western Diamondback Rattlesnakes and Blacktailed Rattlesnakes sharing the same den.

Arizona Black Rattlesnake from Greenlee County

Arizona Black Rattlesnakes are amazingly variable in appearance across their range. Most that are seen and photographed are in the relatively well-populated areas of the Mogollon Rim between Flagstaff, Prescott, and Payson. In other parts of their range, however, they look a bit less familiar. This one from the far eastern end of their range in largely inaccessible ranges of Greenlee County has a much messier, mottled look than is typically expected of the species, but common in the area.

Arizona Black Rattlesnake from Greenlee County

An Arizona Black Rattlesnake resting in partial cover after an exceptionally rainy few days. In this area, along the eastern edge of their range in Arizona, the species can look a bit different. The light bands on this individual, for instance, are wide, in some cases as wide as the darker blotches they surround, and the snake may never darken (much). This is typical for the area, though, as most of the photos you may see of Arizona Black Rattlesnakes online or in field guides are from a handful of more central locations.