olho-dourado-de-touca vs Coastal Silver-stiletto

Bucephala albeola compared with Acrosathe annulata

Key Differences

• olho-dourado-de-touca is Not Evaluated while Coastal Silver-stiletto is Least Concern.

Taxonomic Classification

Rank	olho-dourado-de-touca	Coastal Silver-stiletto
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (cordados)	Arthropoda (artrópode)
Class	Aves (ave)	Insecta (inseto)
Order	Anseriformes (Anseriformes)	Diptera (Mosca)
Family	Anatidae	Therevidae
Genus	Bucephala	Acrosathe
Species	Bucephala albeola	Acrosathe annulata

Evolutionary Relationship

olho-dourado-de-touca and Coastal Silver-stiletto share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

olho-dourado-de-touca

NE — Not Evaluated

Coastal Silver-stiletto

LC — Least Concern

Physical Characteristics

Attribute	olho-dourado-de-touca	Coastal Silver-stiletto
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

olho-dourado-de-touca

Habitat

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

Range

Found across Europe (11 countries) and North America (United States).

Coastal Silver-stiletto

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

olho-dourado-de-touca

O mergulhão-cabeçudo (Bucephala albeola) está classificado como Não Avaliado (NE) na Lista Vermelha da IUCN. Ainda não avaliado segundo os critérios da Lista Vermelha da IUCN. O status de conservação ainda será determinado.

Coastal Silver-stiletto

Coastal silver stiletto (Acrosathe annulata) is a slender robber fly in the family Therevidae, native to northwestern Europe, including the United Kingdom, France, the Netherlands, Belgium, and Scandinavia. Adults are found on coastal sand dunes and sandy heathland, where they perch on bare sand to ambush small flying insects. Stiletto flies in the family Therevidae are characterised by a slender body, long pointed abdomen, and predatory habits; adults prey on a variety of small dipterans and other flying insects during warm, sunny periods. Larvae develop in sandy soil, where they are also predatory, feeding on other invertebrate larvae. Acrosathe annulata is a habitat specialist restricted to open, sandy coastal habitats with sparse vegetation—environments that have declined substantially across northwestern Europe due to dune stabilisation, recreational disturbance, and the cessation of traditional dune management. The IUCN lists it as Least Concern, though regional conservation bodies in the United Kingdom have flagged population declines. It is considered an indicator of high-quality coastal sand dune habitats and is monitored through national invertebrate surveys.

Shared Countries

Both species can be found in 4 countries:

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