Amazonian Marsh Rat vs Cinnamon-bellied Ground-Tyrant

Holochilus sciureus compared with Muscisaxicola capistratus

Taxonomic Classification

Rank	Amazonian Marsh Rat	Cinnamon-bellied Ground-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Cricetidae	Tyrannidae
Genus	Holochilus	Muscisaxicola
Species	Holochilus sciureus	Muscisaxicola capistratus

Evolutionary Relationship

Amazonian Marsh Rat and Cinnamon-bellied Ground-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Amazonian Marsh Rat

LC — Least Concern

Cinnamon-bellied Ground-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Amazonian Marsh Rat	Cinnamon-bellied Ground-Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Amazonian Marsh Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Cinnamon-bellied Ground-Tyrant

Habitat

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

Range

Found in Norway.

Amazonian Marsh Rat

The Amazonian Marsh Rat (Holochilus sciureus) is a species in the genus Holochilus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Cinnamon-bellied Ground-Tyrant

The cinnamon-bellied ground tyrant (Muscisaxicola capistratus) is a small flycatcher in the family Tyrannidae, found in the arid steppe, puna grasslands, and rocky slopes of western and central Argentina and Bolivia. It inhabits open, barren, and semi-arid environments at elevations from approximately 2,000 to 4,500 meters in the eastern Andes foothills and Patagonian steppe, foraging on the ground for insects and small invertebrates. The plumage is brown above with a distinctive rufous-cinnamon belly that contrasts with paler underparts, giving the species its common name. Like other ground tyrants in the genus Muscisaxicola, it runs and pauses across bare or sparsely vegetated ground rather than perching on vegetation. The species is classified as Least Concern by the IUCN, with a restricted but apparently stable South American range. Ground tyrants as a group represent a highly successful Andean radiation into open, high-altitude habitats. This species is entirely absent from Europe; any database record associating it with Norway is a data artifact. Threats include overgrazing of native steppe vegetation by livestock, which can degrade foraging habitat, and climate-driven changes in Andean precipitation and vegetation cover.