Common Lazy Toad vs Желтоклювый чёрный кассик

Oreolalax major compared with Amblycercus holosericeus

Taxonomic Classification

Rank	Common Lazy Toad	Желтоклювый чёрный кассик
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Amphibia (земноводные)	Aves (птицы)
Order	Anura (бесхвостые земноводные)	Passeriformes (воробьинообразные)
Family	Megophryidae	Icteridae
Genus	Oreolalax	Amblycercus
Species	Oreolalax major	Amblycercus holosericeus

Evolutionary Relationship

Common Lazy Toad and Желтоклювый чёрный кассик share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Common Lazy Toad

LC — Least Concern

Желтоклювый чёрный кассик

LC — Least Concern

Physical Characteristics

Attribute	Common Lazy Toad	Желтоклювый чёрный кассик
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Lazy Toad

Habitat

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

Желтоклювый чёрный кассик

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Common Lazy Toad

The Common Lazy Toad (<em>Oreolalax major</em>) is an amphibian in the family Megophryidae, classified as Least Concern on the IUCN Red List. The species typically inhabits freshwater habitats, moist forests, and wetlands, favoring cool, humid environments associated with mountain streams and adjacent riparian vegetation. As a member of the family Megophryidae, it is adapted to fast-flowing, clear mountain streams where larvae typically develop among leaf litter and gravel on the stream bed. The Common Lazy Toad is generally associated with the highland and montane zones of its range, relying on intact forest cover and unpolluted water bodies for reproduction and larval development. Its Least Concern status reflects an assessment of stable population trends, though like many amphibians it may be sensitive to changes in water quality, habitat loss, and emerging infectious diseases such as chytridiomycosis. Biological traits of this species remain poorly documented in the scientific literature.

Желтоклювый чёрный кассик

Yellow-billed Cacique (Amblycercus holosericeus) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.