Do Chipmunks Eat Black Walnuts

Chipmunks do eat black walnuts, and these nuts can actually be a nutritious part of their diet when they can get to them.
 
If you’ve ever watched a chipmunk scurrying across your yard with its cheeks stuffed full, there’s a good chance it was carrying a black walnut or two.
 
So yes, chipmunks eat black walnuts, though getting through that tough outer shell is a whole different story.
 
In this post, we’ll take a closer look at whether chipmunks eat black walnuts, why these nuts appeal to them, and how these little foragers manage to crack into such a hard-shelled snack.
 
Let’s dig in.
 

Why Chipmunks Eat Black Walnuts

Chipmunks eat black walnuts for plenty of good reasons, and here’s why these nuts are such a big deal for them.
 

1. Black Walnuts Are Packed With Nutrition

Black walnuts are a rich source of healthy fats, protein, and essential nutrients that chipmunks need to thrive.
 
These nuts give chipmunks the energy they need for constant foraging, climbing, and evading predators.
 
A single black walnut can provide a serious calorie boost, which matters a lot for such a small animal.
 

2. They’re a Natural Part of Their Habitat

Chipmunks that live near black walnut trees have grown up around these nuts, so they’re a familiar and reliable food source.
 
Since black walnut trees drop their nuts in abundance during fall, chipmunks take full advantage of the seasonal windfall.
 
It’s basically a free buffet that shows up every year right when they need to stock up.
 

3. Perfect for Caching and Storing

Chipmunks are famous for stuffing food into their cheek pouches and hauling it back to their burrows.
 
Black walnuts are ideal for this because they store well and don’t spoil quickly underground.
 
A chipmunk can tuck a black walnut into its cheek pouch and carry it home to eat later when food is scarce.
 

4. They Help Chipmunks Survive Winter

Come winter, chipmunks don’t hibernate the way bears do, so they need a steady supply of stored food to snack on.
 
Black walnuts collected in fall become an important winter pantry item for these little hoarders.
 
That’s why you’ll often see chipmunks working overtime to gather black walnuts before the cold sets in.
 

How Chipmunks Get Into Black Walnuts

Getting past a black walnut’s shell isn’t easy, but chipmunks have a few clever tricks up their sleeves.
 

1. They Wait for the Husks to Soften

Black walnuts start out wrapped in a thick, green husk that eventually turns black and mushy as it breaks down.
 
Chipmunks often go for the nuts after the husk has softened, which makes the whole process a lot easier.
 
Once the husk is gone, they’re left with the hard inner shell to deal with.
 

2. They Gnaw Through the Shell

Chipmunks have sharp, ever-growing incisors that can slowly wear through tough materials.
 
It takes patience, but a determined chipmunk can gnaw its way into a black walnut shell over time.
 
They’ll often wedge the nut against a rock or root to get better leverage while they work.
 

3. They Take Advantage of Cracked Nuts

Not every black walnut a chipmunk finds is intact, and that’s actually good news for them.
 
Nuts that have already been cracked by falling from a height or run over by cars are much easier to open.
 
Chipmunks are smart enough to snatch up these easier meals whenever they come across them.
 

4. They Use Their Cheek Pouches for Transport

If a chipmunk can’t crack a black walnut on the spot, it’ll simply stuff it into its cheek pouch and carry it home.
 
Back at the burrow, the chipmunk can take its time working through the shell in a safe, sheltered spot.
 
This is why you’ll sometimes find piles of black walnut shells near chipmunk burrows.
 

Are Black Walnuts Safe for Chipmunks?

Black walnuts are safe for chipmunks, and they’ve been eating them for generations without any problems.
 

1. They’re Non-Toxic to Chipmunks

Unlike some foods that can harm wildlife, black walnuts aren’t toxic to chipmunks.
 
In fact, they’re a natural food source that chipmunks have evolved alongside for thousands of years.
 

2. Moderation Is Still Key

Even though chipmunks eat black walnuts, they don’t rely on them exclusively.
 
A balanced diet of seeds, berries, insects, and other nuts keeps them healthy.
 
Black walnuts are just one piece of the puzzle when it comes to their overall nutrition.
 

3. Watch Out for Moldy Nuts

The one real danger with black walnuts is mold, which can develop on nuts that have been sitting in damp conditions.
 
Chipmunks usually avoid moldy nuts on their own, but it’s worth knowing if you’re leaving nuts out for wildlife.
 
Fresh, healthy black walnuts are always the better option.
 

Do Chipmunks Eat Black Walnuts or Just Bury Them?

Chipmunks eat black walnuts, but they also bury plenty of them for later.
 

1. Eating Happens on the Spot

When a chipmunk finds a black walnut it can open, it’ll often eat it right there.
 
You might spot a chipmunk sitting on a stump or rock, nibbling away at a freshly cracked nut.
 

2. Burying Is for Later

Chipmunks are champion hoarders, so they stash black walnuts in burrows and shallow caches all over their territory.
 
Some of these buried nuts get forgotten, which is actually how new black walnut trees sometimes sprout.
 
So chipmunks eat black walnuts and accidentally plant them too.
 

So, Do Chipmunks Eat Black Walnuts?

Chipmunks do eat black walnuts, and these nuts are a valuable food source for them throughout the year.
 
From their nutritional benefits to their role in winter survival, black walnuts give chipmunks plenty of reasons to seek them out.
 
Whether they’re gnawing through a tough shell or stashing nuts for later, chipmunks clearly have a taste for black walnuts.
 
So the next time you see a chipmunk with bulging cheeks, there’s a good chance it’s carrying a black walnut home for dinner.