Black Tern vs Nilgiri langur

Chlidonias niger compared with Semnopithecus johnii

Key Differences

• Black Tern is Least Concern while Nilgiri langur is Vulnerable.

Taxonomic Classification

Rank	Black Tern	Nilgiri langur
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Primates (Primates)
Family	Laridae	Cercopithecidae (Old World Monkeys)
Genus	Chlidonias	Semnopithecus
Species	Chlidonias niger	Semnopithecus johnii

Evolutionary Relationship

Black Tern and Nilgiri langur share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black Tern

LC — Least Concern

Nilgiri langur

VU — Vulnerable

Physical Characteristics

Attribute	Black Tern	Nilgiri langur
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).

Nilgiri langur

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.