Brown weeper capuchin vs Cinereous Ground-Tyrant

Cebus brunneus compared with Muscisaxicola cinereus

Key Differences

• Brown weeper capuchin is Endangered while Cinereous Ground-Tyrant is Least Concern.

Taxonomic Classification

Rank	Brown weeper capuchin	Cinereous Ground-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Primates (Primates)	Passeriformes (Songbirds)
Family	Cebidae	Tyrannidae
Genus	Cebus	Muscisaxicola
Species	Cebus brunneus	Muscisaxicola cinereus

Evolutionary Relationship

Brown weeper capuchin and Cinereous Ground-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown weeper capuchin

EN — Endangered

Cinereous Ground-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Brown weeper capuchin	Cinereous Ground-Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown weeper capuchin

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Venezuela. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cinereous Ground-Tyrant

Habitat

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

Range

Found in Norway.

Brown weeper capuchin

The Brown Weeper Capuchin (Cebus brunneus) is a species in the genus Cebus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Cinereous Ground-Tyrant

The cinereous ground tyrant (Muscisaxicola cinereus) is a small flycatcher in the family Tyrannidae, found in the high Andes and Patagonian grasslands of South America, with a range spanning Chile, Argentina, Bolivia, and Peru. It inhabits open, barren, or sparsely vegetated habitats such as high-altitude puna grassland, rocky Andean plateaus, rocky coastal grassland, and steppe vegetation, typically at elevations from 1,000 meters to above 4,500 meters. Like other ground tyrants, it forages on the ground for insects and small invertebrates, often running and pausing rather than perching. The plumage is uniform gray to brownish-gray with a slightly paler underside. The cinereous ground tyrant is classified as Least Concern by the IUCN, with a wide South American range and stable populations. Ground tyrants of the genus Muscisaxicola represent a fascinating adaptive radiation into high-altitude open habitats across the Andes and southern South America. This species is entirely restricted to South America and is absent from Europe; any database record citing Norway is incorrect. Andean grassland habitats face increasing pressure from overgrazing, burning, and climate-driven changes in vegetation, but the cinereous ground tyrant's wide range and tolerance of degraded habitats suggest resilience.