a bird flea vs Big Finner

Ceratophyllus hirundinis compared with Balaenoptera physalus

Key Differences

• a bird flea is Not Evaluated while Big Finner is Endangered.

Taxonomic Classification

Rank	a bird flea	Big Finner
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Mammalia (Mammals)
Order	Siphonaptera (Siphonaptera)	Cetacea (Whales & Dolphins)
Family	Ceratophyllidae	Balaenopteridae (Rorquals)
Genus	Ceratophyllus	Balaenoptera (Rorquals)
Species	Ceratophyllus hirundinis	Balaenoptera physalus

Evolutionary Relationship

a bird flea and Big Finner share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

a bird flea

NE — Not Evaluated

Big Finner

EN — Endangered

Physical Characteristics

Attribute	a bird flea	Big Finner
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

a bird flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

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.

a bird flea

The a bird flea (Ceratophyllus hirundinis) is a species in the genus Ceratophyllus. It is not yet evaluated on the IUCN Red List. It is found across Denmark, Norway, Portugal, and Sweden, inhabiting diverse terrestrial and freshwater habitats.

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.

Shared Countries

Both species can be found in 4 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇵🇹 Portugal 🇸🇪 Sweden