Great Thick-knee vs Red-billed Duck

Esacus recurvirostris compared with Anas erythrorhyncha

Key Differences

• Great Thick-knee is Near Threatened while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Great Thick-knee	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Charadriiformes (Charadriiformes)	Anseriformes (Anseriformes)
Family	Burhinidae	Anatidae
Genus	Esacus	Anas
Species	Esacus recurvirostris	Anas erythrorhyncha

Evolutionary Relationship

Great Thick-knee and Red-billed Duck share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Great Thick-knee

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Great Thick-knee	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Great Thick-knee

Habitat

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

Range

Found in Norway. 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).

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway