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What Is a Group of Snakes Called?

Bed is the primary, most widely documented term for a group of snakes, describing the tightly clustered mass many species form when they den together, especially during winter dormancy. Several behavior-specific alternates are also genuinely documented: den refers to the hibernation site itself, the burrow or crevice where a bed gathers; nest applies to snakes clustered around eggs, since some species actively guard a clutch; pit is used specifically for pit vipers and rattlesnakes, tied to both their heat-sensing facial pits and the rocky hibernation pits they favor; and knot, trogle, and slither describe the tangled, coiling shape and motion of a gathered group.

Where Did the Name Come From?

Snakes are one of the few “exotic” collective-noun animals with a genuine native presence in Britain, thanks to the adder, so it’s plausible some of these terms carry real roots in old English folk observation rather than the purely symbolic, whimsical hunting-list tradition of the Book of Saint Albans (1486) that produced terms like “a murder of crows.” Bed most likely describes exactly what it looks like: the flattened, densely packed cluster snakes form when many individuals share the same brumation site, bedding down together through the cold months. Knot and trogle read as similarly literal descriptions of that same tangled, coiled shape.

Snake Facts

• Brumation: Snakes don’t hibernate the way mammals do — they undergo brumation, a reptile-specific dormancy. In cold climates, dozens to hundreds of individuals, sometimes several species, share the same den (called a hibernaculum) to conserve warmth.
• Diversity: Nearly 4,000 known snake species exist on every continent except Antarctica, ranging from burrowing thread snakes to massive constrictors.
• Venom: Only around 600 species are venomous, roughly 15% of all snakes, and just a fraction of those pose serious danger to humans.
• Senses: Pit vipers detect prey using heat-sensing loreal pits, while all snakes rely on a forked tongue and Jacobson’s organ (the vomeronasal organ) to “smell” chemical particles in the air.
• Size range: Barbados thread snakes measure under four inches as adults; reticulated pythons can exceed 20 feet.

Example Sentences

• The rangers roped off the trailhead after spotting a bed of snakes coiled together beneath a sun-warmed rock ledge.
• Herpetologists tracked the same den of rattlesnakes returning to the identical limestone pit every winter for years.

Other Names for a Group of Snakes

Den and pit are the most behaviorally precise alternates: den names the physical hibernation site, while pit is reserved almost exclusively for pit vipers and rattlesnakes denning together (see what other animals form a pit). Nest applies narrowly, to the minority of species that actually guard eggs. Knot, trogle, and slither are more descriptive than functional, each capturing the tangled shape or fluid motion of a gathered group rather than a specific behavior or species.

Frequently Asked Questions

What is a group of snakes called?

A group of snakes is called a bed.

What’s the difference between a den and a bed of snakes?

Den refers to the physical hibernation site itself, while bed describes the gathered group of snakes occupying it.

Are snakes social animals?

Mostly solitary, but many species brumate communally, gathering in shared dens by the dozens or hundreds to conserve warmth through winter.

Why is “pit” used specifically for rattlesnakes?

It references both the heat-sensing facial pits of pit vipers and the rocky pits or crevices where rattlesnakes commonly den together.

Is “bed” an old English term?

It likely has real roots in English folk observation of adders, Britain’s native snake, describing the flattened, clustered look of snakes denning together.