欧绒鸭 vs Common Roller

Somateria mollissima compared with Ancylis badiana

Key Differences

• 欧绒鸭 is Near Threatened while Common Roller is Least Concern.

Taxonomic Classification

Rank	欧绒鸭	Common Roller
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Arthropoda (节肢动物门)
Class	Aves (鳥綱)	Insecta (昆蟲綱)
Order	Anseriformes (雁形目)	Lepidoptera (鱗翅目)
Family	Anatidae	Tortricidae
Genus	Somateria	Ancylis
Species	Somateria mollissima	Ancylis badiana

Evolutionary Relationship

欧绒鸭 and Common Roller share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

欧绒鸭

NT — Near Threatened

Common Roller

LC — Least Concern

Physical Characteristics

Attribute	欧绒鸭	Common Roller
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

欧绒鸭

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Roller

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

欧绒鸭

普通绒鸭（Somateria mollissima）在IUCN红色名录中被列为近危（NT）。接近受威胁标准，若无保护措施，种群可能变得脆弱。

Common Roller

<em>Ancylis badiana</em>, the common roller, is a small moth in the family Tortricidae, order Lepidoptera. It is distributed across northwestern Europe, with documented records from Belgium, Denmark, Norway, and Sweden, typically inhabiting woodland margins, hedgerows, scrubland, and areas where its larval host plants are abundant. The species is assessed as Least Concern on the IUCN Red List. Tortricid moths in the genus Ancylis are commonly known as "rollers" or "leafrollers" because their larvae typically roll or fold leaves of host plants to create sheltered feeding structures. <em>Ancylis badiana</em> larvae feed on the foliage of various herbaceous plants, particularly species in the pea family (Fabaceae). Adults are small moths with intricately patterned wings that provide camouflage against bark and plant material. Adult moths are primarily nocturnal and are attracted to light, while larvae are cryptic within their leaf shelters. Biological traits such as lifespan, body measurements, and detailed diet host range remain poorly documented beyond general family-level characteristics. The species typically completes one to two generations per year in temperate European climates, overwintering as pupae. It is considered a minor component of invertebrate biodiversity in European lowland habitats.

Shared Countries

Both species can be found in 4 countries:

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