Common Shelduck vs Ruddy Shelduck

Tadorna tadorna compared with Tadorna ferruginea

Key Differences

• Common Shelduck is Least Concern while Ruddy Shelduck is Not Evaluated.

Taxonomic Classification

Rank	Common Shelduck	Ruddy Shelduck
Kingdom same	Animalia (hayvan)	Animalia (hayvan)
Phylum same	Chordata (Kordalılar)	Chordata (Kordalılar)
Class same	Aves (kuş)	Aves (kuş)
Order same	Anseriformes (Kazsılar)	Anseriformes (Kazsılar)
Family same	Anatidae	Anatidae
Genus same	Tadorna	Tadorna
Species	Tadorna tadorna	Tadorna ferruginea

Evolutionary Relationship

Common Shelduck and Ruddy Shelduck share a common ancestor at the Genus level: Tadorna.

Conservation Status

Common Shelduck

LC — Least Concern

Ruddy Shelduck

NE — Not Evaluated

Physical Characteristics

Attribute	Common Shelduck	Ruddy Shelduck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Shelduck

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

Ruddy Shelduck

Habitat

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

Range

Widely distributed across Asia (Israel, Taiwan), Europe (19 countries), and North America (United States).

Common Shelduck

Common Shelduck (Tadorna tadorna) 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.

Ruddy Shelduck

Ruddy Shelduck (Tadorna ferruginea) 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 5 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan