Hairy-tailed Tree Rat vs Scale-crested Pygmy-Tyrant

Brachytarsomys villosa compared with Lophotriccus pileatus

Key Differences

• Hairy-tailed Tree Rat is Vulnerable while Scale-crested Pygmy-Tyrant is Least Concern.

Taxonomic Classification

Rank	Hairy-tailed Tree Rat	Scale-crested Pygmy-Tyrant
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Nesomyidae	Tyrannidae
Genus	Brachytarsomys	Lophotriccus
Species	Brachytarsomys villosa	Lophotriccus pileatus

Evolutionary Relationship

Hairy-tailed Tree Rat and Scale-crested Pygmy-Tyrant share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hairy-tailed Tree Rat

VU — Vulnerable

Scale-crested Pygmy-Tyrant

LC — Least Concern

Physical Characteristics

Attribute	Hairy-tailed Tree Rat	Scale-crested Pygmy-Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hairy-tailed Tree Rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Scale-crested Pygmy-Tyrant

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Scale-crested Pygmy-Tyrant

Scale-crested Pygmy-Tyrant (Lophotriccus pileatus) 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.