Black Knot vs Red-billed Duck

Apiosporina morbosa compared with Anas erythrorhyncha

Key Differences

• Black Knot is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Black Knot	Red-billed Duck
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Dothideomycetes (Dothideomycetes)	Aves (Birds)
Order	Venturiales (Venturiales)	Anseriformes (Anseriformes)
Family	Venturiaceae	Anatidae
Genus	Apiosporina	Anas
Species	Apiosporina morbosa	Anas erythrorhyncha

Conservation Status

Black Knot

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Black Knot	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black Knot

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and United States.

Red-billed Duck

Habitat

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

Range

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

Black Knot

The Black Knot (Apiosporina morbosa) is a species in the genus Apiosporina. Native to Europe and North America, inhabiting ecosystems characteristic of the region. Its geographic range spans Distributed across Denmark, Norway, and United States.

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