Cascade Frog vs Common Loon

Amolops monticola compared with Gavia immer

Key Differences

• Cascade Frog is Least Concern while Common Loon is Not Evaluated.

Taxonomic Classification

Rank	Cascade Frog	Common Loon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Anura (Frogs & Toads)	Gaviiformes (Gaviiformes)
Family	Ranidae	Gaviidae
Genus	Amolops	Gavia
Species	Amolops monticola	Gavia immer

Evolutionary Relationship

Cascade Frog and Common Loon share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cascade Frog

LC — Least Concern

Common Loon

NE — Not Evaluated

Physical Characteristics

Attribute	Cascade Frog	Common Loon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cascade Frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Common Loon

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Cascade Frog

The Cascade Frog (Amolops monticola) is a species in the genus Amolops. It is currently classified as Least Concern on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

Common Loon

<em>Gavia immer</em>, the common loon or great northern diver, is a large aquatic bird in the family Gaviidae, known for its haunting, yodeling calls across northern lakes. It is found in Belgium, Denmark, Norway, Sweden, and the United States, breeding on freshwater lakes in boreal and subarctic regions and wintering along marine coastlines. The common loon is adept in aerial, terrestrial, and aquatic environments, though it is most highly specialized for diving, using its strong feet positioned far back on its body to pursue fish underwater. It typically feeds on fish, supplemented by crustaceans and aquatic invertebrates. Its striking summer plumage features a black-and-white checkered back and a deep black head with a characteristic white necklace pattern. The species has not been evaluated for IUCN conservation status. Common loons require clear, fish-rich lakes for successful breeding and are sensitive to water quality degradation and human disturbance at nesting sites. Their distinctive calls are emblematic of wilderness in North America and Scandinavia.