Elm Leech vs Red-billed Duck

Hypsizygus ulmarius compared with Anas erythrorhyncha

Key Differences

• Elm Leech is Critically Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Elm Leech	Red-billed Duck
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Aves (Birds)
Order	Agaricales (Gilled Mushrooms)	Anseriformes (Anseriformes)
Family	Lyophyllaceae	Anatidae
Genus	Hypsizygus	Anas
Species	Hypsizygus ulmarius	Anas erythrorhyncha

Conservation Status

Elm Leech

CR — Critically Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Elm Leech	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Elm Leech

Habitat

Inhabits tropical and subtropical moist broadleaf forests within the Indomalayan biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway