Éider común vs Common Yellow Conch

Somateria mollissima compared with Agapeta hamana

Key Differences

• Éider común is Near Threatened while Common Yellow Conch is Least Concern.

Taxonomic Classification

Rank	Éider común	Common Yellow Conch
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópodos)
Class	Aves (Birds)	Insecta (insecto)
Order	Anseriformes (Anseriformes)	Lepidoptera (Butterflies & Moths)
Family	Anatidae	Tortricidae
Genus	Somateria	Agapeta
Species	Somateria mollissima	Agapeta hamana

Evolutionary Relationship

Éider común and Common Yellow Conch share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Éider común

NT — Near Threatened

Common Yellow Conch

LC — Least Concern

Physical Characteristics

Attribute	Éider común	Common Yellow Conch
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Éider común

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 Yellow Conch

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

Éider común

El éider común (Somateria mollissima) está clasificado como Casi Amenazado (NT) en la Lista Roja de la UICN. Próximo a calificar como amenazado, con poblaciones que podrían volverse vulnerables sin acciones de conservación.

Common Yellow Conch

<em>Agapeta hamana</em>, the common yellow conch moth, is a small moth in the family Tortricidae. It is widely distributed across Europe and central Asia, ranging from Britain and Scandinavia eastward through much of the Palearctic region. The species inhabits dry grasslands, heathlands, chalk downlands, and scrubby habitats where its larval host plants are found. Adult moths display distinctive pale yellow to golden-yellow forewings with irregular brown or reddish-brown markings near the wingtip, forming a pattern that resembles the shell of a conch, lending the species its common name. The wingspan typically measures around 15–22 mm. Biological traits such as average adult lifespan, precise body weight, and detailed population data remain poorly documented in consolidated scientific literature. Larvae feed internally on the roots of thistles and knapweeds, particularly <em>Centaurea</em> and <em>Cirsium</em> species. Adults fly from June to August and are frequently attracted to light. <em>Agapeta hamana</em> has been investigated as a potential biological control agent for invasive knapweed species in North America, where it has been introduced experimentally. The species is assessed as Least Concern given its broad distribution and stable habitat associations.

Shared Countries

Both species can be found in 4 countries:

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