Ever since we saw Roger Repp’s talk at the Tucson Herpetological Society, Burrow Buddies — or Not?, we’ve been fascinated by different reptile species sharing shelter sites. Multiple species often share the same overwintering site; we shared this fun example here back in April: At one of our new dens at Muleshoe Ranch, we have… Read More


About 6:30pm, 3 July 2012. Though we had a few tantalizing sprinkles in June, the monsoon officially arrived last night. We got about a half inch of rain at headquarters and the 4th of July has started out cloudy and cool. For the first time in weeks, every snake we checked on this morning was… Read More


As I mentioned in my last post, we are in the midst of the hottest, driest part of the year in Arizona. Temperatures keep rising (over 110F in some parts of Arizona today) and the relief of the monsoon is a long way off. Or is it? Saturday afternoon started clouding up and thunderheads formed.… Read More


In 2011, the Center for Snake Conservation started a twice yearly Snake Count “to map and track snake distributions across North America.” Additionally, the goal of Snake Count is to get everyone (not just scientists) to take an interest in the snakes they see and get involved in conservation. In Arizona, May is typically hot… Read More


It is with a heavy heart that I report the death of one of our snakes, Chris (male Arizona black rattlesnake). While I love all of the rattlesnakes at Muleshoe, Chris has a special place in my heart because he was the first Arizona black rattlesnake I found here (from The Arizona black rattlesnakes trickle… Read More


OK, I (melissa) am the only one who has been gone, but that meant no blog updates.  I’ve spent the last month finishing up fieldwork at our other project in central Arizona. And my how things changed at Muleshoe while I was gone! When I left, snakes were just starting to come out; now things… Read More


So in our last post there was one rattlesnake left that was still in his den as of 30 March. I checked on that snake this morning and am happy to report that Chris (male Arizona black rattlesnake) has emerged! He has not yet moved away from his den site, but was getting some sun… Read More


Or rather, has been here (I’m a little behind in posting :-)). After many boring weeks of tracking our rattlesnakes and seeing almost nothing (we were sometimes able to glimpse a few inches of two of the Arizona black rattlesnakes), nearly all of them have now emerged from their dens. The first signs of spring… Read More


December and January were pretty quiet here at the ranch; as you can see from the above photo, the weather has not exactly been snakey. OK, it only snowed a couple times and melted pretty quickly, but it has still been too cold for snake activity. Even Jaydin (adult male black-tailed rattlesnake) finally settled into… Read More


I’ve always thought of October as the end of the snake season. Snakes settle into their dens and we check on them less frequently because they are no longer making long movements. But, if you ignore snakes over the winter, you’ll miss out on some really cool behavior, like this: A poor quality video of… Read More