Red-billed Duck vs Rust Colored Crab

Anas erythrorhyncha compared with Geothelphusa ferruginea

Key Differences

• Red-billed Duck is Least Concern while Rust Colored Crab is Data Deficient.

Taxonomic Classification

Rank	Red-billed Duck	Rust Colored Crab
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Malacostraca (Crustaceans)
Order	Anseriformes (Anseriformes)	Decapoda (Decapoda)
Family	Anatidae	Potamidae
Genus	Anas	Geothelphusa
Species	Anas erythrorhyncha	Geothelphusa ferruginea

Evolutionary Relationship

Red-billed Duck and Rust Colored Crab share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Red-billed Duck

LC — Least Concern

Rust Colored Crab

DD — Data Deficient

Physical Characteristics

Attribute	Red-billed Duck	Rust Colored Crab
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

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

Rust Colored Crab

Habitat

Typically found in marine, freshwater, and terrestrial environments.

Range

Found in Taiwan.

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.