Pacific Spiny-rat vs Ruby-Crowned Kinglet

Proechimys decumanus compared with Regulus calendula

Key Differences

• Pacific Spiny-rat is Near Threatened while Ruby-Crowned Kinglet is Least Concern.

Taxonomic Classification

Rank	Pacific Spiny-rat	Ruby-Crowned Kinglet
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Echimyidae	Regulidae
Genus	Proechimys	Regulus
Species	Proechimys decumanus	Regulus calendula

Evolutionary Relationship

Pacific Spiny-rat and Ruby-Crowned Kinglet share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Pacific Spiny-rat

NT — Near Threatened

Ruby-Crowned Kinglet

LC — Least Concern

Physical Characteristics

Attribute	Pacific Spiny-rat	Ruby-Crowned Kinglet
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Pacific Spiny-rat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Ruby-Crowned Kinglet

Habitat

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

Range

Distributed across Norway and United States.