Black-headed Gull vs Flat-skulled Shrew

Chroicocephalus ridibundus compared with Sorex roboratus

Key Differences

• Black-headed Gull is Vulnerable while Flat-skulled Shrew is Least Concern.

Taxonomic Classification

Rank	Black-headed Gull	Flat-skulled Shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Soricomorpha (Soricomorpha)
Family	Laridae	Soricidae
Genus	Chroicocephalus	Sorex
Species	Chroicocephalus ridibundus	Sorex roboratus

Evolutionary Relationship

Black-headed Gull and Flat-skulled Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-headed Gull

VU — Vulnerable

Flat-skulled Shrew

LC — Least Concern

Physical Characteristics

Attribute	Black-headed Gull	Flat-skulled Shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Flat-skulled Shrew

Habitat

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.