Black-billed Gull vs Brook Alder

Chroicocephalus bulleri compared with Alnus maritima

Key Differences

• Black-billed Gull is Not Evaluated while Brook Alder is Endangered.

Taxonomic Classification

Rank	Black-billed Gull	Brook Alder
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Magnoliopsida (Dicots)
Order	Charadriiformes (Charadriiformes)	Fagales (Beeches & Oaks)
Family	Laridae	Betulaceae
Genus	Chroicocephalus	Alnus
Species	Chroicocephalus bulleri	Alnus maritima

Conservation Status

Black-billed Gull

NE — Not Evaluated

Brook Alder

EN — Endangered

Physical Characteristics

Attribute	Black-billed Gull	Brook Alder
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-billed Gull

Habitat

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

Range

Found in Norway.

Brook Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Belgium, France, Netherlands, and United Kingdom. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-billed Gull

The Black-billed Gull (Chroicocephalus bulleri) is a species in the genus Chroicocephalus. Typically found in various aerial, terrestrial, and aquatic environments.

Brook Alder

The Brook Alder (Alnus maritima) is a species in the genus Alnus. It is currently classified as Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.