Cay Sua vs River Tern

Alstonia scholaris compared with Sterna aurantia

Key Differences

• Cay Sua is Least Concern while River Tern is Vulnerable.

Taxonomic Classification

Rank	Cay Sua	River Tern
Kingdom	Plantae (thực vật)	Animalia (động vật)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (động vật có dây sống)
Class	Magnoliopsida (Dicots)	Aves (chim)
Order	Gentianales (Bộ Long đởm)	Charadriiformes (Bộ Choi choi)
Family	Apocynaceae	Laridae
Genus	Alstonia	Sterna
Species	Alstonia scholaris	Sterna aurantia

Conservation Status

Cay Sua

LC — Least Concern

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Cay Sua	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Cay Sua

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

River Tern

Habitat

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

Range

Found in Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Cay Sua

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.