Brown oak slender vs Firecrest

Acrocercops brongniardella compared with Regulus ignicapilla

Taxonomic Classification

Rank	Brown oak slender	Firecrest
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Passeriformes (Songbirds)
Family	Gracillariidae	Regulidae
Genus	Acrocercops	Regulus
Species	Acrocercops brongniardella	Regulus ignicapilla

Evolutionary Relationship

Brown oak slender and Firecrest share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brown oak slender

LC — Least Concern

Firecrest

LC — Least Concern

Physical Characteristics

Attribute	Brown oak slender	Firecrest
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown oak slender

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Found across Europe (9 countries).

Firecrest

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Ukraine.

Brown oak slender

The Brown Oak Slender (Acrocercops brongniardella) is a species in the genus Acrocercops. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

Firecrest

Firecrest (Regulus ignicapilla) 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 4 countries:

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