Azure Roller vs Buckelwal

Eurystomus azureus compared with Megaptera novaeangliae

Key Differences

• Azure Roller is Near Threatened while Buckelwal is Vulnerable.

Taxonomic Classification

Rank	Azure Roller	Buckelwal
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Coraciiformes (Coraciiformes)	Cetacea (Whales & Dolphins)
Family	Coraciidae	Balaenopteridae (Rorquals)
Genus	Eurystomus	Megaptera (Humpback Whales)
Species	Eurystomus azureus	Megaptera novaeangliae

Evolutionary Relationship

Azure Roller and Buckelwal share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Azure Roller

NT — Near Threatened

Buckelwal

VU — Vulnerable

Population: ~80.0K

Trend: Increasing ↑

Physical Characteristics

Attribute	Azure Roller	Buckelwal
Diet	—	Carnivore
Average Lifespan	—	50 years
Average Length	—	15.0 m
Average Weight	—	30.0 t

Habitat & Geographic Range

Azure Roller

Habitat

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

Range

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

Buckelwal

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 (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Azure Roller

The Azure Roller (Eurystomus azureus) is a species in the genus Eurystomus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Buckelwal

Among the most acrobatic of the great whales, humpback whales are renowned for their complex, haunting songs sung by males during breeding season — some lasting hours and evolving over time. Reaching 16 meters and 30 tonnes, they undertake the longest migrations of any mammal. Found in all oceans, humpbacks feed on krill and small fish using cooperative bubble-net feeding. Populations have largely recovered from historic whaling.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway