As I was walking back from Lake Carl Etling at Black Mesa State Park in Oklahoma after photographing a Mule Deer Doe and her Fawn in the lake (you can check out that post here: An Evening with a Mule Deer Doe and Her Fawn at Lake Carl Etling), I walked upon another Mule Deer Doe. What caught my attention this time was that she was munching on the fruit of a prickly pear cactus.
Now, I’m sure people out west see this all the time, but it was new to me. Curious about this behavior, I decided to dig a little deeper into why mule deer would eat something that looks so… unappetizing.
Why Do Mule Deer Eat Prickly Pear Cactus?
While prickly pear cactus isn’t a regular part of a mule deer’s diet, it can become a significant food source in certain conditions. Mule deer are known to consume both the pads and the fruit of the prickly pear cactus, especially in arid environments where other food options are scarce. The cactus offers a valuable source of moisture and nutrients, which can be a lifesaver during dry spells or in desert habitats.
When Do Mule Deer Turn to Cactus?
The consumption of prickly pear cactus by mule deer isn’t constant—it varies with environmental conditions and the availability of other food sources. In some studies, cactus fruits have been found to make up a significant portion of the mule deer’s diet during specific seasons, like autumn and winter, when other foods are less abundant. However, overall, cacti play a relatively minor role in their diet compared to other staples like browse and forbs.
A Unique Encounter
Seeing this Mule Deer Doe enjoying prickly pear cactus was a unique experience for me. It’s moments like these that remind me just how adaptable and resourceful wildlife can be, especially in challenging environments. It also gave me a fresh perspective on the incredible survival strategies animals employ, even in the most unforgiving landscapes.
As I continue my wildlife photography adventure here at Black Mesa, I’m constantly amazed by the new things I learn about the creatures that inhabit this rugged and beautiful area. I’ll definitely be keeping a closer eye out for these subtle behaviors in the future!
Hmm I guess they eat the spines and all. How do they keep from getting stuck on the needles. Would be interesting to watch them eat those! Thanks for the information once again. Now in Wyoming ours have Yellow or white or a light pink flower, Love the red flowers.