“Colony” is one of the more familiar collective nouns in the animal world, used for everything from ants and bats to seabirds and, yes, frogs. A colony of frogs describes a group living and breeding in the same area, usually centered around a shared water source they return to season after season.
The term itself doesn’t come from frog-specific folklore. “Colony” has long been used generically for animals that settle together in a fixed location rather than roam, and frogs fit that pattern well. Many species show strong site fidelity, meaning the same population will return to the exact same pond, stream, or wetland to breed year after year, sometimes for generations.
That loyalty to one spot is actually a big reason frog colonies are so useful to scientists and conservationists. Because frogs tend to stay put and their skin is so sensitive to environmental changes, a shrinking or vanishing colony is often one of the first warning signs that something in the ecosystem — water quality, pollution, habitat loss — has gone wrong.
Frog colonies aren’t always large. Some are just a handful of individuals sharing a garden pond; others number in the thousands during peak breeding season. Either way, the term captures something true about frog life: it’s less about wandering and more about putting down roots — wet ones.
Example: “The old quarry has supported a colony of frogs for as long as anyone in town can remember.”
Related: Collective Nouns for Amphibians · What Is a Group of Frogs Called?