Alexander's Swift vs Big Finner

Apus alexandri compared with Balaenoptera physalus

Key Differences

Alexander's Swift is Least Concern while Big Finner is Endangered.

Taxonomic Classification

Rank	Alexander's Swift	Big Finner
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Cetacea (Whales & Dolphins)
Family	Apodidae	Balaenopteridae (Rorquals)
Genus	Apus	Balaenoptera (Rorquals)
Species	Apus alexandri	Balaenoptera physalus

Evolutionary Relationship

Alexander's Swift and Big Finner share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Alexander's Swift

LC — Least Concern

Big Finner

EN — Endangered

Physical Characteristics

Attribute	Alexander's Swift	Big Finner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alexander's Swift

Habitat

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

Range

Found in Norway.

Big Finner

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

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

Alexander's Swift

The Alexander's Swift (Apus alexandri) is a species in the genus Apus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Big Finner

Big Finner (Balaenoptera physalus) 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.