Head to head
Boreal Chorus Frog vs Striped Chorus Frog
The boreal chorus frog and the striped chorus frog belong to the same small genus of North American chorus frogs, yet they have adapted to breed in dramatically different climates at opposite ends of the continent.
| Boreal Chorus Frog | Striped Chorus Frog | |
|---|---|---|
| Scientific name | Pseudacris maculata | Pseudacris nigrita |
| Range | Canada, north-central US | Southeastern coastal plain |
| Freeze tolerance | Survives partial freezing | Not notably freeze-tolerant |
| Typical calling season | Very early spring, near ice | Late winter, early spring |
| Body pattern | Broken back stripes, dark eye stripe | Three bold continuous back stripes |
| Call structure | Rising, comb-like trill | Dense, overlapping buzzing chorus |
| Habitat | Grassland, prairie, wetlands | Grassland, pine flatwoods, wetlands |
| Conservation status | Least Concern | Least Concern |
Boreal Chorus Frog vs Striped Chorus Frog: common questions
Which of the two chorus frogs can survive freezing?
The boreal chorus frog can tolerate a portion of its body fluids freezing solid during a sudden cold snap, protected by natural antifreeze compounds that prevent fatal ice damage, an adaptation suited to its often subarctic range across Canada and the north-central United States, while the striped chorus frog, living in the considerably warmer southeastern coastal plain, has no comparable need for this kind of cold tolerance.
Why does the striped chorus frog's chorus sound like one continuous buzz?
This species often calls in very large, dense aggregations, and with so many individual males calling at once in close proximity, their separate calls overlap so heavily that they blend into a single continuous wall of buzzing sound, a pattern less pronounced in the boreal chorus frog, which tends to call from more scattered, less densely packed pools.
How can you tell a boreal chorus frog from a striped chorus frog by sight?
The boreal chorus frog typically shows broken or interrupted dark stripes down the back along with a bold dark eye stripe, while the striped chorus frog displays three bolder, more continuous dark stripes running the length of its back, a subtle but useful difference for distinguishing between these two closely related species where their ranges might otherwise cause confusion.