Bitter Tooth vs Red-billed Duck

Hydnellum scabrosum compared with Anas erythrorhyncha

Key Differences

• Bitter Tooth is Near Threatened while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Bitter Tooth	Red-billed Duck
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Basidiomycota (Club Fungi)	Chordata (Chordates)
Class	Agaricomycetes (Mushrooms)	Aves (Birds)
Order	Thelephorales (Thelephorales)	Anseriformes (Anseriformes)
Family	Bankeraceae	Anatidae
Genus	Hydnellum	Anas
Species	Hydnellum scabrosum	Anas erythrorhyncha

Conservation Status

Bitter Tooth

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Bitter Tooth	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bitter Tooth

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Distributed across Denmark, Norway, and Sweden. 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).

Bitter Tooth

The Bitter Tooth (Hydnellum scabrosum) is a species in the genus Hydnellum. It is currently classified as Near Threatened on the IUCN Red List. Typically found in forest floors, decomposing wood, and soil ecosystems.

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