Cinereous Ground-Tyrant vs Javan Surili

Muscisaxicola cinereus compared with Presbytis comata

Key Differences

• Cinereous Ground-Tyrant is Least Concern while Javan Surili is Vulnerable.

Taxonomic Classification

Rank	Cinereous Ground-Tyrant	Javan Surili
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Primates (Primates)
Family	Tyrannidae	Cercopithecidae (Old World Monkeys)
Genus	Muscisaxicola	Presbytis
Species	Muscisaxicola cinereus	Presbytis comata

Evolutionary Relationship

Cinereous Ground-Tyrant and Javan Surili share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Cinereous Ground-Tyrant

LC — Least Concern

Javan Surili

VU — Vulnerable

Physical Characteristics

Attribute	Cinereous Ground-Tyrant	Javan Surili
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cinereous Ground-Tyrant

Habitat

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

Range

Found in Norway.

Javan Surili

Habitat

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.