Black-eared Fairy vs blue whale

Heliothryx auritus compared with Balaenoptera musculus

Key Differences

• Black-eared Fairy is Least Concern while blue whale is Vulnerable.

Taxonomic Classification

Rank	Black-eared Fairy	blue whale
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Aves (पक्षी)	Mammalia (स्तनधारी)
Order	Apodiformes (Apodiformes)	Cetacea (Whales & Dolphins)
Family	Trochilidae	Balaenopteridae (Rorquals)
Genus	Heliothryx	Balaenoptera (Rorquals)
Species	Heliothryx auritus	Balaenoptera musculus

Evolutionary Relationship

Black-eared Fairy and blue whale share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

Conservation Status

Black-eared Fairy

LC — Least Concern

blue whale

VU — Vulnerable

Population: ~15.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Black-eared Fairy	blue whale
Diet	—	Carnivore
Average Lifespan	—	90 years
Average Length	—	30.0 m
Average Weight	—	150.0 t

Habitat & Geographic Range

Black-eared Fairy

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

blue whale

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-eared Fairy

The Black-eared Fairy (Heliothryx auritus) is a species in the genus Heliothryx. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments. Distributed across Colombia, Ecuador, Norway, and Venezuela.

blue whale

The largest animal ever known to have lived on Earth, blue whales can reach 33 meters and 200 tonnes — their hearts alone weigh as much as a small car. Found in all oceans, they migrate between polar feeding grounds and tropical breeding areas. Filter feeders consuming up to 4 tonnes of krill daily. Endangered, with global populations estimated at 10,000–25,000 after near-extinction from 20th-century whaling.

Shared Countries

Both species can be found in 3 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway