Allen's Olingo vs Black-headed Gull

Bassaricyon alleni compared with Chroicocephalus ridibundus

Key Differences

• Allen's Olingo is Least Concern while Black-headed Gull is Vulnerable.

Taxonomic Classification

Rank	Allen's Olingo	Black-headed Gull
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Charadriiformes (Charadriiformes)
Family	Procyonidae (Raccoons)	Laridae
Genus	Bassaricyon	Chroicocephalus
Species	Bassaricyon alleni	Chroicocephalus ridibundus

Evolutionary Relationship

Allen's Olingo and Black-headed Gull share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Allen's Olingo

LC — Least Concern

Black-headed Gull

VU — Vulnerable

Physical Characteristics

Attribute	Allen's Olingo	Black-headed Gull
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Allen's Olingo

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Black-headed Gull

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Allen's Olingo

The Allen's Olingo (Bassaricyon alleni) is a species in the genus Bassaricyon. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Black-headed Gull

Black-headed Gull (Chroicocephalus ridibundus) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela