Ray's Knotgrass vs カタジロアマツバメ

Polygonum oxyspermum compared with Aeronautes montivagus

Key Differences

• Ray's Knotgrass is Endangered while カタジロアマツバメ is Least Concern.

Taxonomic Classification

Rank	Ray's Knotgrass	カタジロアマツバメ
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Aves (鳥類)
Order	Caryophyllales (ナデシコ目)	Apodiformes (アマツバメ目)
Family	Polygonaceae	Apodidae
Genus	Polygonum	Aeronautes
Species	Polygonum oxyspermum	Aeronautes montivagus

Conservation Status

Ray's Knotgrass

EN — Endangered

カタジロアマツバメ

LC — Least Concern

Physical Characteristics

Attribute	Ray's Knotgrass	カタジロアマツバメ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ray's Knotgrass

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Denmark, Norway, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

カタジロアマツバメ

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

カタジロアマツバメ

シロハシアマツバメ（Aeronautes montivagus）はIUCNレッドリストで軽度懸念（LC）に分類されています。生息域全体に広く分布し個体群は安定しており、緊急の保全上の懸念はありません。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway