Ferruginous Duck vs Lesser Cachalot

Aythya nyroca compared with Kogia breviceps

Key Differences

• Ferruginous Duck is Not Evaluated while Lesser Cachalot is Data Deficient.

Taxonomic Classification

Rank	Ferruginous Duck	Lesser Cachalot
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Cetacea (Whales & Dolphins)
Family	Anatidae	Kogiidae
Genus	Aythya	Kogia
Species	Aythya nyroca	Kogia breviceps

Evolutionary Relationship

Ferruginous Duck and Lesser Cachalot share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Ferruginous Duck

NE — Not Evaluated

Lesser Cachalot

DD — Data Deficient

Physical Characteristics

Attribute	Ferruginous Duck	Lesser Cachalot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ferruginous Duck

Habitat

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

Range

Found across Asia (Taiwan) and Europe (8 countries).

Lesser Cachalot

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

Ferruginous Duck

Ferruginous Duck (Aythya nyroca) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 2 countries:

🇸🇪 Sweden 🇹🇼 Taiwan