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Western Hognose

Heterodon nasicus

Snake

Key numbers

These figures are a working snapshot for a typical western hognose, not a guarantee for every animal. The rest of the guide is there to explain why they look this way.

Adult size: commonly 20 to 36 inches; females are often the larger and heavier of the two, and many males stay closer to 14 to 24 inches
Lifespan: often 15 to 20 years with consistent care
Adult enclosure: about 36 inches long by 18 inches deep (a 40-gallon “long” or 36x18) is a practical minimum for one adult; a heavy female is more comfortable a bit larger
Start size: a hatchling can begin around a 10-gallon or about 20 to 24 inches if the gradient and lid are right, then move toward the 36x18 as it grows
Housing: one snake per enclosure
Warm hide / basking surface: about 90 to 95 F on the surface the snake actually sits on
Cool hide: about 70 to 75 F
Humidity: around 30 to 50 percent most of the time, with a humid hide when the snake is in shed
Diet: a single appropriately sized rodent, usually frozen-thawed; captives are kept on mice, not wild toads

Do’s and don’ts

The short version of the husbandry below. If a line here and a paragraph later seem to pull in different directions, trust the longer explanation.

Do

Give an adult an enclosure about 36 inches long by 18 inches deep (a 36x18), or larger, with a warm hide and a cool hide that actually differ and enough loose, dry substrate to burrow
Measure the temperature of the surface the snake sits on in the warm hide, not a stick-on thermometer on the glass
Keep the enclosure on the dry side, and offer a humid hide when the eyes go cloudy (in blue)
Offer frozen-thawed mice with tongs. This species often has a strong feeding response
Treat a bite as a reason to wash the site and watch for swelling, not as proof the snake is “harmless” or as a crisis
Learn that individual’s ordinary patterns so a missed meal, a week underground, or a bluff at the glass can be read against a baseline
See a veterinarian who regularly treats reptiles when breathing, body condition, or shed quality leaves that baseline (local herp groups and exotic-vet directories help you find one before you need them)
Send a picture if you find a blotched hog on a property near Cartersville and want an ID. If you want it moved, we relocate snakes within about an hour of Cartersville at no charge

Don’t

Do not leave an adult in a 10-gallon “starter” tank as a finished home
Do not house two western hognoses together
Do not call them nonvenomous. They are rear-fanged. The typical bite is not a medical emergency for most people, and sensationalizing it does not help either
Do not treat hooding, closed-mouth bluff strikes, or flipping onto the back as a cute personality. Those are defensive displays
Do not run the enclosure wet the way you would for a tropical snake
Do not use a hot rock or an unregulated heat pad as the main heat
Do not handle for a couple of days after a meal, or while the snake is in blue (cloudy eyes before a shed)
Do not assume a hog-nosed snake in a Georgia yard is an escaped western pet. Eastern hognose (Heterodon platirhinos) is the local wild species
Do not release a pet western hognose, or any pet snake, into Georgia woods
Do not read a death-feign, a hiss, or a strike at the tongs as a human mood

Western hognose hatchling head showing upturned shovel rostral

A bit of background

The western hognose, Heterodon nasicus, is a small, stout colubrid from the Great Plains and nearby sandy country, from southern Canada through the central United States into northern Mexico. In the field they spend a lot of time pushing through loose soil and sand with that upturned snout, hunting buried prey. That fossorial habit (living and hunting in the substrate rather than sitting in the open) is the thing most captive setups are trying to recreate. A glass box with a thin hide on a paper towel is the opposite of that picture.

They became popular because they stay a manageable size and because the defensive display is famous. A snake that flattens the neck, hisses, and false-strikes with a closed mouth is doing a bluff. If that does not work, many of them roll onto the back, gape, and go still (thanatosis, or death-feigning). Those are last-ditch defenses, not a trick the snake is performing for company. They are also rear-fanged. Enlarged teeth at the back of the upper jaw and a Duvernoy’s gland help them manage toads and other prey. A prolonged bite on a person can swell and ache. Most bites are not medically significant for a typical adult, and they are not a reason to keep the animal in a climate of fear. They are a reason not to call the species nonvenomous, and a reason to use tongs at feeding time.

Adults commonly reach 20 to 36 inches, with a real gap between many males and a heavy female. Lifespan in captivity is often 15 to 20 years. This guide is general husbandry for Heterodon nasicus. The eastern hognose, Heterodon platirhinos, is a different animal and is the wild hog you are more likely to meet on a Cartersville property. Individual animals also vary, and nothing here replaces an exam by a veterinarian who regularly sees reptiles.

Because a blotched hog on land in this part of Georgia is often a wild eastern, not an escaped pet western, two extra points belong up front. A pet western that gets loose is not a wild animal and should not be turned out “to be free.” And a hog-nosed snake someone finds on their land is not automatically a pet because the snout is turned up. If you want an identification, send us a picture. If you want it moved, we relocate snakes within about an hour of Cartersville at no charge.

Western hognose hatchling on paper bedding

Whether they are a good fit

A western hognose is a long-lived, dry-country, fossorial snake that needs a real footprint as an adult, a reliable source of frozen mice, and a keeper who will use tongs. They often eat with enthusiasm. That is not the same thing as being an easy first snake. They are a poor fit for anyone who wants a “nonvenomous” animal they can handle like a corn snake without thinking about a feeding bite, or for a household that will keep the enclosure tropical and wet. They are also a poor fit for anyone who wants a snake that is out and visible every evening. A lot of a western hog’s ordinary day is spent under the substrate.

Enclosure and space

Floor space matters because an adult needs a warm hide and a cool hide with real distance between them, and because this species burrows. A practical minimum for a single adult is about 36 inches long, 18 inches deep, and 18 inches tall. A heavy female is more comfortable if that footprint is a bit larger. A hatchling can start around a 10-gallon or about 20 to 24 inches if the gradient and the lid are right. Move it toward the 36x18 as it grows, typically as it approaches adult length in the first year or two, not as a two-foot adult still in a shoebox.

Western hognose on aspen bedding near a hide

One snake per enclosure is the arrangement that avoids most social problems. Western hognoses are not a species that needs a companion. Two animals in one gradient usually means one claims the better hide, and feeding two in one box is how keepers get bitten by the wrong snake.

A tight hide on each end, a humid hide they can enter and leave, and several inches of loose, dry substrate (deep enough to burrow and disappear, not a thin scatter on glass) do more work than a pile of decoration. The snake should be able to disappear. A water bowl heavy enough not to tip belongs in the enclosure. A lid that latches belongs on it. They are not corn-snake-level escape artists, and they will still find a gap if you give them one.

Temperature and the gradient

A western hognose’s digestion is tied to temperature. The useful measurement is the floor of the warm hide, or the basking surface the snake actually coils on, taken with an infrared temperature gun. Air temperature on a glass sticker can look acceptable while the hide is too cool to digest, or hot enough to burn.

A warm hide or basking surface in the neighborhood of 90 to 95 F is the range that supports normal digestion for most adults. The cool hide in the same enclosure is typically around 70 to 75 F. The difference between those two ends is what lets the animal self-regulate. If the whole box sits at one temperature, they have nowhere to go.

Heat is safest when it is controlled by a thermostat, whether the source is a halogen flood overhead or a quality heat pad on the outside of a tub. Unregulated heat mats and hot rocks are a frequent source of burns. Overnight, a typical house in the mid-60s to low 70s is usually acceptable. Colored night bulbs are unnecessary.

Light, UVB, and the daily cycle

Western hognoses are largely diurnal. They do not need a bright desert rack of lights the way a bearded dragon does. They do need a day and a night. A simple 12 hours on and 12 hours off, even if the “on” is just room light plus the heat lamp, is easier on them than lights at random hours.

Low-level UVB is used by some keepers for this species and is not a substitute for a correct thermal gradient. A high-output desert tube is the wrong lamp for a snake that spends the day under aspen. Keepers who offer UVB generally choose a moderate, forest-strength linear tube and give the snake enough cover and depth of substrate to get out of it. A heat lamp is still heat, not UVB, if you are using one.

Humidity, water, and shedding

These are dry-country snakes. Ambient humidity around 30 to 50 percent is typical of a working setup. When the eyes go cloudy (in blue) and the snake is about to shed, a humid hide (a hide with damp sphagnum or moss the snake can enter and leave) is often enough without wetting the whole enclosure.

Chronically wet substrate, especially on a cool floor, is a regular backdrop for scale rot and respiratory trouble in this species. Chronically bone-dry air with no humid hide is a regular backdrop for stuck eye caps. The useful picture is a dry-to-the-touch surface the snake sits on and burrows in, with a humid hide available.

A healthy shed comes off in one piece, including the eyecaps. Patchy shed that repeats is often a humidity or hydration problem, or a sign the animal is not in good condition. A shed skin on a property is not a nest. Hognose snakes do not stay together after hatching. Young-of-year leave the hatch site and disperse. Finding a skin means an animal passed through, not that a family is living there.

Diet

In the field, western hognoses eat a lot of amphibians, including toads, and they will take lizards and small mammals. In captivity they are kept on rodents. That is the diet we can source cleanly and consistently. Hatchlings usually start on mouse pinks or fuzzies (newborn or just-furred mice). Adults typically move to adult mice sized so the prey is about as wide as the snake at mid-body. Frozen-thawed, warmed through, and offered with tongs is the method that avoids most feeding bites. A snake that only strikes live can often be transitioned. A live mouse left in the enclosure overnight can chew on a snake that is not hungry.

This species is famous for a strong feeding response. The lid opening and the tongs coming in are food cues. That is why we feed with tongs and why we do not handle with prey smell on the hands. A bite that is allowed to chew is the bite most likely to swell. Do not yank against the rear teeth. Wait the snake out, wash the site, and take off rings if a finger is involved.

Young animals are commonly fed every 5 to 7 days. Adults often go 7 to 10 days, and body condition is a better teacher than a calendar. A hog that is folding in on itself with fat pads is being fed too often or too large. A hog with a sharply triangular body and a visible spine is being fed too little, or is ill. Handling is postponed for a couple of days after a meal.

Substrate

Aspen shavings are the usual dry, burrowable floor for this species. They stay loose, they are easy to spot-clean, and they match the humidity range. Plan on several inches of depth so the snake can actually disappear — roughly three to four inches as a working minimum for a typical adult, and deeper for a heavy female that digs hard.

A soil-and-sand mix (mostly dry organic topsoil with a smaller fraction of play sand) can work in a naturalistic enclosure if it stays dry, if the snake is warm enough to digest, and if rocks are supported from below so the snake cannot collapse a cave on itself. That is not the same thing as a floor of pure sand or calcium sand. Pure sand as the main bedding is a poor default: it is dusty, it does not hold a tunnel the way aspen or a soil mix does, and when a cool or dehydrated snake swallows a lot of it with a meal, impaction is the conversation that follows. Offer food with tongs, not buried in the bedding, and keep the warm hide in range. Cypress and coconut that are kept damp are a better match for a different snake.

Paper works for quarantine. Whatever is on the floor needs to stay dry enough that the snake is not lying in wet mulch, and feces are removed when they appear. Cedar and aromatic pine are not bedding.

Handling and daily life

Most western hognoses will sit in a hand once they are used to being picked up, provided they are supported along the body and not grabbed at the head after a feeding cue. Short, calm sessions after the snake has had a chance to settle are easier than daily wrestling. Handling waits a couple of days after a meal, and while the snake is in blue.

Western hognose juvenile tongue-flicking while handled

A snake that hoods, hisses, and false-strikes at the glass is not greeting you and is not “being dramatic for fun.” It is a defensive animal, often one that has learned the door predicts tongs. Give it room. Do not pick it up to show someone the display.

Body language and behavior

Western hognoses are easy to misread because the display is theatrical. People put human stories on it. A snake that flips onto its back and gapes is not playing dead for your entertainment, and it is not depressed. Thanatosis is a last defensive tool. A closed-mouth strike is often a bluff. An open-mouth strike that hangs on is not a bluff, and it is not a personality diagnosis. Anthropomorphizing (treating the animal as if it has human motives, moods, and social needs) is how keepers miss the actual information: whether this individual is using both hides, eating on its own pattern, shedding clean, and breathing with a closed mouth.

The useful habit is to learn the patterns of the animal in front of you. How much of the day it spends buried. Whether it usually comes up after the room brightens. How it reacts to the lid versus the tongs. Once that baseline is familiar, a change is the thing that matters.

Signals that are usually ordinary

Tongue-flicking is sampling the air. Burrowing out of sight for most of the day is ordinary fossorial behavior, not a snake that is “unhappy.” Flattening the neck and hissing when the enclosure is opened is a defensive bluff. A closed-mouth strike at the glass is often the same project, or a food response if the tongs are in view. The rest of the picture (time since the last meal, whether the snake is in shed, whether a hand smells like mouse) is what makes it make sense.

Death-feigning (rolling over, mouth open, lying still, sometimes with musk) is a defensive last resort. Leave the snake alone and let it right itself. Blue, dull skin and cloudy eyes mean a shed is coming. Hiding for a few days around that shed is ordinary.

What to watch for

Open-mouth breathing, wheezing, or bubbles at the mouth or nose. That is a respiratory picture, not a snake that is still death-feigning.
A bite that swells, blisters, or is not settling. Wash the site and use ordinary medical judgment. This is not a copperhead, and it is not nothing.
Regurgitation, or a snake that strikes and refuses to finish. Check the warm-hide temperature and how soon the animal was handled after the last meal.
Stuck eyecaps or ragged sheds that repeat.
Belly scales that are brown, pink, or blistered, or a snake that is lying in wet substrate. That is a scale-rot picture.
Weight loss through a hunger strike, or a hog that was a reliable eater and has stopped. Check temperatures first, then a reptile veterinarian.
A snake that cannot right itself, or that corkscrews, is a neurological picture and is not something to wait out.

Any of those patterns is a reason to check the husbandry first, then to see a reptile veterinarian if the animal does not return to its own baseline.

Problems that show up often

Respiratory disease tracks an enclosure that is too cold, or cold and damp together. Scale rot tracks wet, filthy substrate. Obesity is common in animals that are fed like they are still growing after they have finished growing. Stuck shed is less common when the humid hide is available and the water bowl is clean. A feeding bite is a handling-and-tongs problem more often than it is a “mean snake.”

A pet that escapes is a husbandry problem of a different kind: check the lid, then check the house, and do not dump the animal outside. A hog someone finds on a property here is, again, often an eastern. Send a picture before you decide it is a loose pet.

Bringing a new animal home

A quarantine period in its own enclosure, with its own tongs and water bowl and a fecal check, is a kinder start than dropping a new snake into a display vivarium on day one. A common working window is about 30 to 90 days, or until appetite is steady and a fecal comes back clear — longer if anything looks off. Confirm that both hides hit the right temperatures and that the substrate is dry before decorating. Leave the animal alone long enough to eat at least a couple of meals before regular handling. Use tongs from the first feed. Those first weeks are also the time to start learning this animal’s ordinary behavior, including how much of the day it spends buried.

Recommended gear

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A 36x18 footprint, dry aspen they can burrow in, a thermostat, and tongs matter more than decoration. A 4x2x2 is more space than a small male needs and is a comfortable adult home for a heavy female.

A 36x18 reptile enclosure for a typical adult, or a Zen Habitats 4x2x2 3.0 if you want extra floor space
Etekcity Lasergrip 774 for the hide floor the snake sits on
ThermoPro probe thermometer and hygrometer
An on/off thermostat for a heat mat. Use a dimming stat if the heat is a bulb
Aspen snake bedding
Snug opaque hides for the warm end, the cool end, and a humid hide with damp sphagnum
Feeding tongs