Arrow-head tree snail vs Black-headed Heron

Partula sagitta compared with Ardea melanocephala

Key Differences

• Arrow-head tree snail is Extinct while Black-headed Heron is Least Concern.

Taxonomic Classification

Rank	Arrow-head tree snail	Black-headed Heron
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Gastropoda (Gastropoda)	Aves (Birds)
Order	Stylommatophora (Stylommatophora)	Pelecaniformes (Pelecaniformes)
Family	Partulidae	Ardeidae
Genus	Partula	Ardea
Species	Partula sagitta	Ardea melanocephala

Evolutionary Relationship

Arrow-head tree snail and Black-headed Heron share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Arrow-head tree snail

EX — Extinct

Black-headed Heron

LC — Least Concern

Physical Characteristics

Attribute	Arrow-head tree snail	Black-headed Heron
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arrow-head tree snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Black-headed Heron

Habitat

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

Range

Found in Norway.

Arrow-head tree snail

The Arrow-head tree snail, Partula sagitta, is a species. It is currently assessed as extinct on the IUCN Red List. Typically found in terrestrial and aquatic habitats including forests and freshwater.

Black-headed Heron

The Black-headed Heron (Ardea melanocephala) is a species in the genus Ardea. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.