There are at least five Arizona Black Rattlesnakes in this photo. It’s a winter den site, where multiple generations live together through the cool part of the year.

There are at least five Arizona Black Rattlesnakes in this photo. It’s a winter den site, where multiple generations live together through the cool part of the year.

It’s not a great photo, but this is how these snakes are often seen. It’s a Striped Whipsnake; one of several seen cruising around a multi-species rattlesnake den in the spring. Personally, I’ve been clued into a good number of rattlesnakes hidden deep within crevices because of these much more observable snakes, and their preference for similar hibernacula.

I found this Blacktailed Rattlesnake with a few others hanging out around a winter den early in 2024. Unlike other rattlesnake overwintering sites in the area, this one does not seem to be shared with the other rattlesnake species that can be found there – just lots of blacktails.
Dens like this have been difficult to pinpoint in environments that are mostly open rock, but over time the specifics have become more apparent and sights like this come easier these days. I’m looking forward to a return visit this spring.

A Southwestern Speckled Rattlesnake hiding away on a dry May day. A site nearby will serve as an aestivation den a few weeks later, once temperatures were firmly in the triple digits each day.

Western Diamondback Rattlesnakes getting some sun just outside their winter den several springs ago in central Arizona.

Arizona Black Rattlesnake watching us as we watch her from a basking spot near her winter den. She is one of a group of females that will stay here all year, eventually giving birth late in the summer.

A Western Diamondback Rattlesnake out basking in early Spring at its den. An hour later, this animal was out on the crawl looking for females to court, and make sure rival males stick to their own rocks.
