Bridge Roller vs Ferruginous Duck

Ancylis uncella compared with Aythya nyroca

Key Differences

• Bridge Roller is Least Concern while Ferruginous Duck is Not Evaluated.

Taxonomic Classification

Rank	Bridge Roller	Ferruginous Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Anseriformes (Anseriformes)
Family	Tortricidae	Anatidae
Genus	Ancylis	Aythya
Species	Ancylis uncella	Aythya nyroca

Evolutionary Relationship

Bridge Roller and Ferruginous Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bridge Roller

LC — Least Concern

Ferruginous Duck

NE — Not Evaluated

Physical Characteristics

Attribute	Bridge Roller	Ferruginous Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bridge Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Ferruginous Duck

Habitat

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

Range

Found across Asia (Taiwan) and Europe (8 countries).

Bridge Roller

The Bridge Roller (Ancylis uncella) is a species in the genus Ancylis. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Ferruginous Duck

Ferruginous Duck (Aythya nyroca) 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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden