Katung Fa vs Laysan Duck

Alstonia macrophylla compared with Anas laysanensis

Key Differences

• Katung Fa is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Katung Fa	Laysan Duck
Kingdom	Plantae (พืช)	Animalia (สัตว์)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (สัตว์มีแกนสันหลัง)
Class	Magnoliopsida (พืชใบเลี้ยงคู่)	Aves (นก)
Order	Gentianales (อันดับดอกหรีดเขา)	Anseriformes (อันดับห่าน)
Family	Apocynaceae	Anatidae
Genus	Alstonia	Anas
Species	Alstonia macrophylla	Anas laysanensis

Conservation Status

Katung Fa

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Katung Fa	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Katung Fa

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and deserts and xeric shrublands within the Indomalayan biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Congo (DRC), Seychelles, Sri Lanka, and United States.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

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

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.