Chihuahua Gray vs Common Tern

Aphonopelma pallidum compared with Sterna hirundo

Key Differences

• Chihuahua Gray is Least Concern while Common Tern is Endangered.

Taxonomic Classification

Rank	Chihuahua Gray	Common Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Arachnida (Arachnids)	Aves (Birds)
Order	Araneae (Araneae)	Charadriiformes (Charadriiformes)
Family	Theraphosidae	Laridae
Genus	Aphonopelma	Sterna
Species	Aphonopelma pallidum	Sterna hirundo

Evolutionary Relationship

Chihuahua Gray and Common Tern share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chihuahua Gray

LC — Least Concern

Common Tern

EN — Endangered

Physical Characteristics

Attribute	Chihuahua Gray	Common Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chihuahua Gray

Habitat

Typically found in terrestrial habitats from forests to deserts.

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Chihuahua Gray

The Chihuahua Gray (Aphonopelma pallidum) is a species in the genus Aphonopelma. It is currently classified as Least Concern on the IUCN Red List. Typically found in terrestrial habitats from forests to deserts.

Common Tern

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.