Black Tern vs Blind Small-eared Shrew

Chlidonias niger compared with Cryptotis niausa

Key Differences

• Black Tern is Least Concern while Blind Small-eared Shrew is Data Deficient.

Taxonomic Classification

Rank	Black Tern	Blind Small-eared Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Soricomorpha (Soricomorpha)
Family	Laridae	Soricidae
Genus	Chlidonias	Cryptotis
Species	Chlidonias niger	Cryptotis niausa

Evolutionary Relationship

Black Tern and Blind Small-eared Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Tern

LC — Least Concern

Blind Small-eared Shrew

DD — Data Deficient

Physical Characteristics

Attribute	Black Tern	Blind Small-eared Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Tern

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Blind Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Black Tern

Black Tern (Chlidonias niger) 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.

Blind Small-eared Shrew

The Blind Small-eared Shrew (Cryptotis niausa) is a species in the genus Cryptotis. It is currently classified as Data Deficient on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador