K
Species Profile

Kirtland’s Snake

Clonophis kirtlandii

Red-bellied ghost of wet prairies
Mike Wilhelm/Shutterstock.com

Kirtland’s Snake Distribution

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Endemic Species
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Kirtland's snake head and eye close-up. Kirtland’s snakes are small, reddish to dark brown snakes.

At a Glance

Wild Species
Activity Crepuscular+
Lifespan 4 years
Did You Know?

Adult total length is typically 30-46 cm, with rare individuals reported to about 66 cm (Harding 1997; Ernst & Ernst 2003).

Scientific Classification

Kirtland's snake is a small, secretive, nonvenomous snake endemic to parts of the Midwestern United States, recognized by its distinctive reddish belly with dark lateral spots.

Kingdom
Animalia
Phylum
Chordata
Class
Reptilia
Order
Squamata
Family
Colubridae
Genus
Clonophis
Species
Clonophis kirtlandii

Distinguishing Features

  • Small-bodied natricine; typically secretive and found under cover objects or in moist soils
  • Reddish to pink belly with a row of dark spots along each side of the ventral scales
  • Dorsum usually brown/gray with relatively subtle patterning compared with many Nerodia water snakes
  • Midwestern U.S. distribution (not broadly widespread)

Physical Measurements

Length
1 ft 6 in (12 in – 2 ft 2 in)
Top Speed
2 mph
slithering

Appearance

Primary Colors
Secondary Colors
Skin Type Nonvenomous colubrid with glossy scales; dorsal scales commonly described as keeled; midbody scale rows reported as 19 in keys/field guides.
Distinctive Features
  • Adult total length commonly 30-46 cm; maximum reported about 62 cm (Ernst & Ernst, 2003; species accounts).
  • Distinctive ID mark: bright red/reddish-orange belly with paired black spots along each side of the ventrum.
  • Dorsum gray to brown with multiple (often four) rows of small, dark spots; back appears finely speckled at distance.
  • Head small and only slightly wider than neck; eyes moderate; overall slender, secretive appearance.
  • Midwestern U.S. endemic; strongly associated with wet meadows/wet prairies, sedge fields, and adjacent open grasslands.
  • Secretive behavior: frequently shelters in crayfish burrows, soil cracks, and under debris in moist grasslands.
  • Conservation-relevant: wetland drainage, grassland conversion, and development reduce suitable wet-prairie/wet-meadow habitat.

Sexual Dimorphism

Females typically average larger in total length and body girth. Males tend to have proportionally longer tails and more subcaudal scales; overall coloration and spotting pattern are otherwise similar between sexes.

♂
  • Proportionally longer tail (post-vent length) than females.
  • Typically more subcaudal scales than females (sex-linked character in snakes).
  • Often slightly smaller average adult total length than females.
♀
  • Larger average adult total length and heavier body build.
  • Greater abdominal girth when gravid; tail proportionally shorter than males.
  • Otherwise similar dorsal spotting and red-and-black ventral pattern.

Did You Know?

Adult total length is typically 30-46 cm, with rare individuals reported to about 66 cm (Harding 1997; Ernst & Ernst 2003).

It's live-bearing (viviparous): litters commonly range about 4-15 young, usually born in late summer (Ernst & Ernst 2003).

Its key ID mark is the bright reddish-orange belly with two rows of dark, round spots along the ventrolateral edges-often visible when it's handled or threatened.

It strongly associates with wet meadows/wet prairies and is frequently found using crayfish burrows as refuges, especially during drought or heat.

Diet records emphasize soft-bodied prey-especially earthworms and slugs-matching its secretive, ground-level foraging (Ernst & Ernst 2003).

Because it's so hard to detect (often underground), populations can persist unnoticed in small habitat fragments-until drainage or development removes the wet grassland soils it depends on.

It is nonvenomous and typically relies on hiding and musking rather than biting when disturbed (Harding 1997).

Unique Adaptations

  • Ventral warning display: the vivid red/orange belly with paired dark spots can be flashed when disturbed, a potential startle/deflection signal aimed at predators (pattern is diagnostic for the species).
  • Moisture dependence + burrow use: reliance on saturated soils and underground refugia helps prevent dehydration and overheating in open grassland wetlands.
  • Viviparity (live birth): reduces dependence on finding warm, safe egg-laying sites in wet, cool, or flood-prone habitats-conditions common in Midwestern wet prairies.
  • Small-bodied, fossorial build: its size and head/body proportions suit moving through dense roots, thatch, and soil cracks typical of sedge meadows and prairie swales.

Interesting Behaviors

  • Crayfish-burrow refuge use: individuals retreat into crayfish burrows and similar soil cavities for shelter, moisture, and temperature buffering-an important behavior in seasonally drying wetlands.
  • Secretive surface activity: most above-ground movement tends to occur under cover (vegetation, boards, debris) and during moist conditions; it is often encountered only during targeted surveys.
  • Defensive response: when handled, it may attempt to flee, coil tightly, and release a strong-smelling musk; biting is uncommon (Harding 1997).
  • Seasonal habitat tracking: shifts among microhabitats (wet meadow, sedge margins, damp swales) to maintain suitable soil moisture; may concentrate near wetlands during dry periods.
  • Live-bearing reproduction: females retain embryos and give birth to fully formed young, which can be advantageous in cooler Midwestern climates (Ernst & Ernst 2003).

Cultural Significance

Kirtland's snake (Clonophis kirtlandii) is named for Dr. Jared Potter Kirtland. Described in the 1800s, it is a symbol of threatened Midwestern wet prairies and meadows. Elusive and tied to rare wet grasslands, it is used in local restoration messages as a hidden sign of healthy water.

Myths & Legends

Kirtland's snake (Clonophis kirtlandii) was called an elusive prairie-wetland species in early Midwestern nature notes. Its name honors Jared P. Kirtland, part of a 19th-century practice of naming species after local naturalists.

Kirtland's snake (Clonophis kirtlandii) is nicknamed a prairie 'ghost' by locals; its rarity and underground habits lead to tales of living nearby for years without seeing it, a symbol of the Midwest's lost wet prairies.

Conservation Status

NT Near Threatened

Likely to qualify for a threatened category in the near future.

Population Decreasing

Protected Under

  • Not listed under the U.S. Endangered Species Act (federal).
  • Protected or regulated via U.S. state-level endangered/threatened/special-concern listings and wildlife collection prohibitions across parts of its range (status varies by state).

Life Cycle

Birth 8 hatchlings
Lifespan 4 years

Lifespan

In the Wild
2–8 years
In Captivity
4–12 years

Reproduction

Mating System Promiscuity
Social Structure Solitary
Breeding Pattern Seasonal
Fertilization Internal Fertilization
Birth Type Internal_fertilization

Solitary snakes that congregate briefly in spring for courtship; males trail females and may compete. Females can store sperm and give birth to live young later in summer; no pair bonds form and there is no parental care.

Behavior & Ecology

Social Aggregation Group: 1
Activity Crepuscular, Nocturnal
Diet Insectivore Earthworms (Lumbricidae)
Seasonal Hibernates

Temperament

Secretive, cover-dependent snake; most encounters are single individuals, with seasonal overwintering variation.
Generally docile when handled; primary response is escape into cover or burrows (Harding 1997).
Defensive displays can include body flattening and cloacal musking; biting reported as uncommon (Ernst & Ernst 2003).
Often remains motionless when uncovered, relying on crypsis rather than aggression (Ernst & Ernst 2003).

Communication

None documented; snakes lack vocal cords and do not produce true vocal calls Greene 1997
Chemical cues/pheromones for mate searching and trail-following during breeding General squamate behavior; Greene 1997
Tactile contact during courtship/mating E.g., chin-rubbing/alignment typical of colubrids; Greene 1997
Substrate-borne vibrations used incidentally in predator detection/avoidance; not known as social signaling Greene 1997

Habitat

Biomes:
Temperate Grassland Temperate Forest Freshwater Wetland
Terrain:
Plains Valley Riverine Muddy
Elevation: Up to 1476 ft 5 in

Ecological Role

Small-bodied mesopredator of soil and litter invertebrates in moist grassland/wet-meadow and adjacent disturbed habitats.

Regulates populations of soil/litter invertebrates (especially earthworms and slugs) Transfers energy from detritus-based invertebrate production to higher trophic levels (as prey for birds, mammals, and larger reptiles) Contributes to food-web stability in wet meadow/grassland edge communities

Diet Details

Main Prey:
Earthworms Slugs Leeches Soft-bodied insect larvae

Human Interaction

Domestication Status

Wild

Kirtland's snake (Clonophis kirtlandii) is not domesticated and has no domestication history. Adults are about 30–46 cm long. It is secretive and lives in moist grasslands, wet meadows, and prairie remnants, often in crayfish burrows. People see it during mowing, construction, or on roads. Threats include killing, road and mowing deaths, and wetland loss; it is rarely kept in captivity.

Danger Level

Low
  • Nonvenomous; no medically significant venom risk to humans.
  • May bite if handled, but bites are typically superficial due to small size.
  • May musk/defecate when threatened (nuisance odor, not dangerous).
  • As with all reptiles, handling can pose a Salmonella transmission risk without proper hygiene.

As a Pet

Not Suitable as Pet

Legality: Kirtland's snake (Clonophis kirtlandii) is usually not a legal or practical pet. Many states protect it; taking or owning is often banned or needs a permit. Captive-bred animals are rare—do not try to get one.

Care Level: Expert Only

Purchase Cost:
Lifetime Cost: $600 - $2,500

Economic Value

Uses:
Ecosystem services Education/research Conservation value (biodiversity/indicator species)
Products:
  • No commercial products; value is primarily ecological and scientific (e.g., contributes to invertebrate population control and serves as a conservation indicator in remnant wet prairies/meadows).

Relationships

Predators 9

Great Blue Heron
Great Blue Heron Ardea herodias
Red-tailed Hawk Buteo jamaicensis
American Crow Corvus brachyrhynchos
Raccoon
Raccoon Procyon lotor
Striped Skunk Mephitis mephitis
Virginia Opossum Didelphis virginiana
North American Racer
North American Racer Coluber constrictor
Eastern Milksnake
Eastern Milksnake Lampropeltis triangulum
Common Kingsnake Lampropeltis getula

Related Species 7

Kirtland's snake
Kirtland's snake Clonophis kirtlandii Shared Genus
Queen snake
Queen snake Regina septemvittata Shared Family
Common watersnake
Common watersnake Nerodia sipedon Shared Family
Dekay's brownsnake
Dekay's brownsnake Storeria dekayi Shared Family
Common gartersnake Thamnophis sirtalis Shared Family
Red-bellied snake Storeria occipitomaculata Shared Family
Graham's crayfish snake Regina grahamii Shared Family

Ecological Equivalents 5

Animals that fill a similar ecological role in their ecosystem

Dekay's brown snake
Dekay's brown snake Storeria dekayi Small, secretive, nonvenomous snakes that inhabit moist ground, hide under cover (especially after rain), and primarily eat soft-bodied invertebrates such as earthworms and slugs. Kirtland's snake (Clonophis kirtlandii) is about 35–60+ cm.
Red-bellied snake Storeria occipitomaculata Ecologically parallel: a small, cryptic snake of moist microhabitats that forages on invertebrates (slugs and earthworms), uses cover objects and leaf litter, and is nonvenomous, relying on concealment rather than overt defense.
Common gartersnake Thamnophis sirtalis Shares wet-meadow and edge habitat use and opportunistic foraging in moist environments. While gartersnakes are broad-diet generalists, both species can be active in similar conditions (especially cool, wet periods) and use burrows or other cover for refuge.
Queen snake
Queen snake Regina septemvittata Part of the broader natricine wetland/stream-edge ecological guild in the Midwest and Eastern U.S. Queen snakes are more strictly aquatic and specialize on crayfish, but they overlap in landscape position (riparian/wetland complexes) and share predator communities.
Eastern wormsnake
Eastern wormsnake Carphophis amoenus Functional analogue: small, secretive, and largely subterranean/under-cover, often in moist soils where earthworms are abundant. Similar detectability pattern — rarely seen except under cover or after rains.

Kirtland’s snake is a small snake, about 14-28 inches long, that inhabits areas in the north-central Midwest.

It’s frequently confused with several other snakes including Dekay’s Brown Snake and the Northern Red-bellied Snake, but its belly is what you’ll use to confirm its identity. They always live near a water source and their prey includes small reptiles, slugs, earthworms, and slugs. 

Kirtland’s Snake Amazing Facts!

  • They can be very dramatic when threatened and might writhe around, or roll up into a ball and play dead.
  • They are ovoviviparous and give live birth.
  • Their belly is red, orange, or pink with dots on the sides.

Where to Find Kirtland’s Snake

Kirtland’s snakes inhabit moist open meadows and wet prairie lands. They are small and reclusive and spend much of their time underground making use of crayfish burrows. They need a moist-soil environment to survive so a water source (either permanent or seasonal) is always nearby. They have also been known to find their way to the edge of developed areas. When they’re found above-ground it’s typically under moist leaf litter or another shelter because they don’t bask very often.

They’re active from March or April to November, preying on a variety of animals such as earthworms, slugs, small reptiles, and amphibians. They are ovoviviparous and do not lay eggs and instead give birth to live young. Mating is in the spring, and young are born around August.

Kirtland’s Snake Scientific Name

Their scientific name is a blend of Greek and Latinized English. Clonophis means twig snake (Klon = twig; ophios = snake), and kirtlandii refers to Dr. Jared Potter Kirtland (1793-1877) who founded the Cleveland Museum of Natural History, in whose honor the snake was named. Kirtland’s snakes are the only species in the genus clonophis.

Kirtland’s Snake Population and Conservation Status

These snakes have declined dramatically over the last several decades and their IUCN status is near threatened. There is no accurate count of their population due to their reclusive and difficult-to-study nature. The greatest challenge to their population at present is habitat loss and degradation, and all the states they inhabit have listed them as either threatened or endangered.

Appearance and Description of Kirtland’s Snake

Kirtland’s snakes are small, reddish to dark brown snakes. They range from 14-28 inches long and thin, and the females give birth to a clutch of 4-15 live young in late summer. Their belly is the best way to identify them: it is red, orange, or pink and has two rows of dark spots along either side. Their back has two rows of larger dark blotches and two rows of smaller dark blotches; and scales on their top side are keeled, giving a textured feel to their skin.

They are often confused with Dekay’s brown snake and Northern Red-bellied Snakes. Dekay’s brown snake looks similar on the back, but the belly is light brown, and the red-bellied snake doesn’t have as much detail in its rows of spots.

Kirtland’s Snake Photos and Videos

Their belly is the best way to identify Kirtland’s snakes: it is red, orange, or pink and has two rows of dark spots along either side.

Their belly is the best way to identify Kirtland’s snakes: it is red, orange, or pink and has two rows of dark spots along either side.

The scales on a Kirtland’s snake's top side are keeled, giving a textured feel to their skin.

The scales on a Kirtland’s snake’s top side are keeled, giving a textured feel to their skin.

Kirtland's snake head and eye close-up. Kirtland’s snakes are small, reddish to dark brown snakes.

Kirtland’s snakes are small, reddish to dark brown snakes.

Video shows Kirtland’s snakes being released in the wild.

Are Kirtland’s Snakes Dangerous?

These snakes are harmless, but try to put on a good show when they are threatened or disturbed. They flatten themselves to appear larger, stiffen up and play dead, or roll up into a ball. 

Kirtland’s Snake Behaviour and Humans

These snakes are rather shy, they’re not particularly brave and would rather hide than fight. They spend much of their time underground and are secretive, according to biologists. If you find one, it’s most likely to be underneath a shelter of some sort – and their idea of shelter is flexible. A cardboard box on a damp lawn or an abandoned crayfish burrow will do. 

They have a number of natural predators, from burrowing animals like weasels and milk snakes; when they’re above ground hawks, cats, weasels, and skunks may prey on them.

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Sources

  1. Michigan State University / Accessed February 16, 2022
  2. PACE / Accessed February 16, 2022
  3. IUCN / Accessed February 16, 2022
Gail Baker Nelson

About the Author

Gail Baker Nelson

Gail Baker Nelson is a writer at A-Z Animals where she focuses on reptiles and dogs. Gail has been writing for over a decade and uses her experience training her dogs and keeping toads, lizards, and snakes in her work. A resident of Texas, Gail loves working with her three dogs and caring for her cat, and pet ball python.
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Kirtland’s Snake FAQs (Frequently Asked Questions)

No. These snakes are non-venomous and not dangerous to people or pets (unless your pet is a free-ranging slug or crayfish).