3 Types of Squirrels That Live in Arizona! (2024)

What types of squirrels can you find in Arizona?

common squirrels in arizona

I have found squirrels cause a range of emotions. Some individuals find them adorable and love watching their crazy antics!

But many people can’t stand having squirrels around, particularly on their bird feeders! These feeding enthusiasts are constantly battling these acrobatic rodents to keep them on the ground and away from their bird food.

Regardless of your personal feelings, I think squirrels are interesting to learn about. If you are curious about all the species that can be found near you, please keep reading. 🙂

3 types of squirrels in Arizona!

#1. American Red Squirrel

american red squirrel - types of squirrels in arizona

Scientific Name: Tamiasciurus hudsonicus

Average Length (Including tail): 11- 14 inches / 28 – 35.5 cm

Weight: 7.1–8.8 oz / 200–250 g

Lifespan: They experience severe mortality during their first year, as only about 20% of babies survive. For individuals that survive the first year, the average lifespan is still only 2.3 years, with a maximum lifespan of 8 years. Predators include bobcats, coyotes, hawks, owls, foxes, American Martens, and Canadian Lynxes.

The American Red Squirrel is widespread across Arizona and easy to identify when compared to other squirrel species. As the name suggests, they have a reddish color and white belly that makes them easy to distinguish. Size-wise, they are both MUCH smaller than both gray and fox squirrels but larger than chipmunks.

American Red Squirrel Range Map

american red squirrel range map

These squirrels are primarily found in coniferous forests due to their diet, which consists of seeds from evergreen trees. But they are equally at home in deciduous forests, backyards, parks, and urban areas, where they adjust their diet to eat foods such as berries, bird eggs, acorns, hazelnuts, mushrooms, mice, and sunflower seeds from backyard bird feeding stations. American Red Squirrels even have a sweet tooth and are known to tap maple trees so they can eat the sugar from the sap!

These squirrels are BEST known for their aggressive personality!

Press PLAY to hear the sounds of an American Red Squirrel!

When I go hiking, I almost always see at least one American Red Squirrel, as they are not shy creatures. As soon as I’m spotted, the squirrel typically runs up a tree to sit and then starts making loud chattering noises to alert the whole forest to my presence!

And despite their small size, these squirrels run the show if they show up to your bird feeders. I have personally witnessed these feisty rodents chase away more than FIVE Eastern Gray Squirrels away from my feeding station so that they can have the place to themselves. (Watch the video below to see for yourself!)

YouTube video

Feeding birds is a challenge with these squirrels around!

From a bird feeding perspective, American Red Squirrels present unique challenges if you want to prevent them from eating your birdseed. Here’s why:

red squirrels - species of squirrels in arizona

  • These squirrels are small enough to fit through most caged bird feeders. These feeders are designed to prevent larger squirrels (Eastern Gray, Fox) from fitting through while still allowing small songbirds to eat.
  • Many bird feeders have been designed to be weight-sensitive and close if enough weight, like that from a squirrel, sits on the perch. Because American Red Squirrels are so small and light, they don’t force the perch to close on many feeders, which allows them to eat as much as they want.

Damage caused by an American Red Squirrel!

  • These feisty squirrels will do almost ANYTHING to get access to where you store your bird food. For example, I keep my seed stored in a shed, either in metal bins or plastic 5-gallon buckets with lids. As you can see from the damage above, American Red Squirrels are the only animals at my house that chew through hard plastic to get to the seed. Luckily, they haven’t figured out how to chew through metal… yet. 🙂

#2. Abert’s Squirrel

aberts squirrel

Scientific Name: Sciurus aberti

Average Length (Including tail): 18 – 23 inches / 46 to 58 cm

Weight: 19 – 34 oz / 540 – 971 g

The ears on an Abert’s Squirrel, which are also called Tassel-eared Squirrels, are unique, and it’s hard to mistake if you see one. Just look for long tufts of hair on each ear (except that the tufts disappear in summer)! In addition, they have a dark gray coat, pure white underbelly, and a noticeable rusty brown patch of fur on their back. They look a lot like the adorable Eurasian Red Squirrel, except for their color.

Abert’s Squirrels are found in Arizona, primarily living in coniferous forests close to their favorite tree, the Ponderosa Pine.

Abert’s Squirrel Range Map

aberts squirrel range map

Ponderosa Pines play an important role in the life of Abert’s Squirrels.

In fact, these trees provide everything from food to nesting to protection from predators!

  • Food:

While these squirrels eat a wide variety of foods, Ponderosa Pines are their favorite and their primary nutrition throughout the entire year. In warm months, the seeds and buds are consumed. Incredibly, a single squirrel can eat the seeds from up to 75 pine cones per day!

During colder months, Abert’s Squirrels eat the inner bark of the actual tree, in addition to twigs. In winter, on average, about 45 twigs are eaten every day!

The Ponderosa Pine provides such a consistent food source throughout the year, the Abert’s Squirrel rarely stores any food for winter. This behavior is incredibly unique when it comes to squirrels!

  • Nesting:

Females will build twig nests, which resemble large, messy bird nests, on the branches of Ponderosa Pines. Adults will even use these shelters year-round for nightly protection. These squirrels would use a cavity, but pines rarely have holes big enough for nesting purposes.

  • Cover:

Abert’s Squirrels and Ponderosa Pines go hand in hand. These pine trees not only provide food and nesting areas, but their interlocking canopies serve as protection against predators. Animals such as hawks, particularly the Northern Goshawk, hunt these squirrels regularly.

Lastly, these adorable squirrels have a sweet tooth!

In spring, it’s possible to see them licking the sugary sap off the bark of Boxelder Trees, which are related to maples.

#3. Arizona Gray Squirrel

arizona gray squirrel

Scientific Name: Sciurus arizonensis

Average Length (Including tail): ~20 inches / ~50 cm

Weight: ~23 oz / ~567 grams

The Arizona Gray Squirrel has a small range and only lives in parts of Arizona and New Mexico. These squirrels are typically found at higher elevations in the mountains. Look for them by rivers in deciduous woods near trees that produce their favorite foods, which are acorns, walnuts, and pine cones.

Arizona Gray Squirrel Range Map

arizona gray squirrel range map

Interestingly, the breeding activity of these squirrels is correlated with the blooming of flowers! These mammals love feasting on flowers, and the nutrition and vitamins inside help sustain the energy demands required for reproduction.

Not much is known about the status of the Arizona Gray Squirrel, as they are shy and hard to study because they live in the mountains. But it’s thought that their population has declined, due to a few reasons.

First, these squirrels, like most animals, have experienced habitat loss. Second, it seems they are being out-competed by the larger Abert’s Squirrel, as it extends its range. Arizona Gray Squirrels are not currently on the Endangered Species List, but they may end up there eventually.

Which of these squirrels have you seen before in Arizona?

Leave a comment below!

Learn more about other animals found in Arizona HERE:

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  1. Is there a waytosend video or pics of the squirrel family in my cabin . They look like musgrats/ squirrel??? Strips on them??

  2. I live in Tucson and see grey squirrels, they eat the cat kibble that I put out for the feral cats and seem to thrive on it – one day had three little ones, I suspect from the same litter

  3. Very surprised to just see a gray squirrel with rings on his tail in my yard in Gilbert, AZ! Never seen one here before

  4. There’s another species of squirrel in Arizona, too: Rock Squirrel (Otospermophilus variegatus). I discovered a family of them (at least 1 adult with at least 5 young) in a burrow under a cactus in my Tucson neighborhood (on the west side, near a wash and some open desert).

    1. I am in the music Mountains by Grand canyon west. My squirrel’s have strips like a musgrats but they are squirrel’s. How can I post pictures??