Bigtail skate vs Red-billed Duck

Dipturus macrocauda compared with Anas erythrorhyncha

Key Differences

• Bigtail skate is Near Threatened while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Bigtail skate	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Rajiformes (Rajiformes)	Anseriformes (Anseriformes)
Family	Rajidae	Anatidae
Genus	Dipturus	Anas
Species	Dipturus macrocauda	Anas erythrorhyncha

Evolutionary Relationship

Bigtail skate and Red-billed Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Bigtail skate

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Bigtail skate	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigtail skate

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

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

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Bigtail skate

The Bigtail skate (Dipturus macrocauda) is a species in the genus Dipturus. It is currently classified as Near Threatened on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.