Do Bullsnakes Eat Rattlesnakes? – AZ Animals

Key Points

  • Bullsnakes and rattlesnakes grow to similar sizes and share a lot of the same territory.
  • Bullsnakes are rumored to eat and/or repel rattlesnakes, but is this actually true?
  • There are certain animal species who actively prey on the rattlesnake.

Rattlesnakes are one of the scariest species of snake in North America. They’re common throughout the desert southwest, as well as all regions of the United States. They can even be found in Canada, Central America, and South America. They’re members of the pit viper family, so named for the heat-sensing pits located between their eyes and nostrils. Rattlesnakes may be scary, but many people wonder, do bullsnakes eat rattlesnakes?

Bullsnakes are similar to rattlesnakes in that they occupy many of the same areas. They eat the same things, and grow to similar sizes. They even look similar—though bullsnakes lack one thing that rattlesnakes are widely known for. Like rattlesnakes, bullsnakes strike fear into the hearts of many—and they just may strike fear into the hearts of rattlesnakes too.

Here, we’ll learn more about the important differences between rattlesnakes and their less dangerous cousin, the bullsnake. Then, we’ll take a look at some of the more common myths surrounding the two. Finally, we’ll answer the big question: do bullsnakes eat rattlesnakes? After that, we’ll take a look at some of the other creatures that make a meal out of rattlesnakes, and what rattlesnakes like to eat too.

Bullsnake Vs. Rattlesnake: What’s the Difference? 

Bull Snake  vs Rattlesnake


Like rattlesnakes, bullsnakes can grow up to eight feet long. Both species have dusky yellow or brown bodies with diamond-like markings, but only the rattlesnake has a rattle. Additionally, rattlesnake heads are very different from bullsnake heads.

The head of a rattlesnake is designed to deliver venom, whereas bullsnakes are actually non-venomous. Bullsnake heads are narrow, not much wider than the width of their necks, and they lack the heat sensing pits that rattlesnakes have. Rattlesnakes have spade shaped heads that are very wide at the base. And, unlike bullsnakes, rattlesnakes have very large, retractable fangs at the front of their mouths. Though, hopefully, you won’t see them.

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Do Bullsnakes Kill Rattlesnakes?

Bull Snake with Jaws Open
Bullnakes may look like rattlesnakes but lack fangs.


Bullsnakes and rattlesnakes grow to about the same size, and occupy many of the same habitats, but do bullsnakes kill rattlesnakes? According to popular myth, they do. But, stories are often wrong, and so is this one.

No, bullsnakes do not kill rattlesnakes—they don’t hunt them down, and they don’t eat them. The sole exception to this is opportunity. For example; a hungry adult bullsnake might eat a newborn, or small, dead, rattlesnake, if given the opportunity.

Bullsnakes have a very similar diet to rattlesnakes: they both eat small mammals primarily. Their typical prey includes mice, rats, shrews, rabbits, and other pint sized creatures. Bullsnakes will also eat birds, and even amphibians. But, like rattlesnakes, they rarely eat other snakes. 

Do Bullsnakes Repel Rattlesnakes?

If you’ve heard that bullsnakes kill rattlesnakes, then you’ve probably also heard that bullsnakes repel rattlesnakes. Some people have even gone so far as to keep bullsnakes in their tents when camping, believing that this will keep them safe from rattlers. However, this is neither necessary, nor true.

Bullsnakes do not repel rattlesnakes; they’re both snakes, and each species wants about the same thing out of life—to eat, and make little snakes. Bullsnakes and rattlesnakes may not be bosom buddies, but they don’t repel each other like bug spray to mosquitoes. Bullsnakes are, however, commonly mistaken for rattlesnakes, and are often killed by people who mistakenly think that all rattlesnakes should be killed on sight.

Do Bullsnakes and Rattlesnakes Mate? 

Mojave rattlesnake close-up of rattle
Rattlesnakes may look like bullsnakes, but the two types of snakes don’t mate.

©Rusty Dodson/

Rattlesnakes share many commonalities with bullsnakes: size, habitat, prey, and even reproduction. Both bullsnakes and rattlesnakes are ovoviviparous, meaning that females develop eggs inside their bodies. They don’t lay the eggs. Instead, the baby snakes incubate within the eggs while they’re still in the mother, they even hatch in her womb. The female bullsnake or rattlesnake then gives birth to live young.

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But, can bullsnakes and rattlesnakes produce offspring? The answer is: no. They may be very similar, but rattlers and bullsnakes are, in the end, different species, and don’t mate. They don’t seek each other out to make little snakes, and many have different, incompatible, mating rituals. Further, bullsnakes will eat young rattlers if given the chance, and vice versa. But, they won’t stop at other types of snake; both rattlesnakes and bullsnakes have been known to eat the young of their own species. They just have to be hungry enough and have the opportunity.

What Eats Rattlesnakes?

Snakes in Mississippi - Eastern Black Kingsnake (Lampropeltis nigra)
Predators of rattlesnakes include kingsnakes and roadrunners.

©Matt Jeppson/

Rattlesnakes don’t have much to fear, but they do have to watch out for a few creatures. Humans are probably at the top of this list, as they’re responsible for many unnecessary rattlesnake deaths. But, after humans, the rattlesnake’s greatest enemy is probably the kingsnake. Kingsnakes actively hunt rattlesnakes for supper, as do greater roadrunners. Both species are uniquely suited to attacking and killing rattlesnakes, despite their dangerous venom.

Interestingly, kingsnakes aren’t venomous like rattlesnakes, so they actually rely on constriction to kill their prey. So rattlesnakes can potentially use their venom to defend themselves from the slow strategy of kingsnakes. But the kingsnake’s tendency to eat other snakes is where its name derives.

After kingsnakes and rattlesnakes, species like the timber, prairie, and Mojave rattlesnake have to watch out for coyotes, guinea fowl, large birds of prey, and livestock. Cows and horses will stomp rattlesnakes to death if they’re startled, and many birds will snatch them from the ground for a meal.

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What Do Rattlesnakes Eat?

Rattlesnakes are the great rodent hunters of North America. They’re so good at it that, without rattlesnakes, our rodent populations would explode, causing massive ecological damage. Some of the rattlesnake’s favorite foods include mice, rats, gophers, prairie dogs, and rabbits. They’ll also eat small birds, amphibians, and lizards. Depending on where they live, rattlers also prey on bird eggs, swallowing them whole without having to worry about using any venom.

Because of their ability to control rodent populations, rattlesnakes are key components of many ecosystems. Human led killing of them can lead to major imbalances. That’s why if you see a rattlesnake, or a bullsnake, try to leave it alone. Remember—snakes don’t want to hurt you, but they will act to defend themselves, if necessary.

Up Next…

When do Rattlesnakes Come Out– Know when these potentially hazardous reptiles are most active, especially if you’re spending time in their habitat.

Animals that Hunt Rattlesnakes– So the bullsnake doesn’t kill rattlesnakes, but what does?

Kingsnakes in Georgia the Complete Guide– Did you know there are four types of kingsnakes in Georgia?

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