Common Silver Hairgrass vs Killdeer

Aira caryophyllea compared with Charadrius vociferus

Key Differences

• Common Silver Hairgrass is Endangered while Killdeer is Least Concern.

Taxonomic Classification

Rank	Common Silver Hairgrass	Killdeer
Kingdom	Plantae (식물)	Animalia (동물)
Phylum	Magnoliophyta (피자식물문)	Chordata (척삭동물)
Class	Liliopsida (백합강)	Aves (새)
Order	Poales (벼목)	Charadriiformes (도요목)
Family	Poaceae (Grass Family)	Charadriidae
Genus	Aira	Charadrius
Species	Aira caryophyllea	Charadrius vociferus

Conservation Status

Common Silver Hairgrass

EN — Endangered

Killdeer

LC — Least Concern

Physical Characteristics

Attribute	Common Silver Hairgrass	Killdeer
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Silver Hairgrass

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical grasslands and savannas, and flooded grasslands and savannas, among 11 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (Cameroon), Asia (Japan, South Korea), Europe (6 countries), North America (4 countries), Oceania and the Pacific (Australia), and South America (4 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Killdeer

Habitat

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

Range

Widely distributed across Europe (Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Common Silver Hairgrass

<em>Aira caryophyllea</em>, commonly known as Common Silver Hairgrass, is a slender annual grass belonging to the family Poaceae within the order Poales. This delicate grass is currently classified as Endangered on the IUCN Red List, reflecting significant conservation concern despite its historically broad distribution. It is typically found across a remarkable diversity of biome types, including tropical and subtropical moist broadleaf forests, grasslands, savannas, and flooded habitats, demonstrating notable ecological versatility. Its geographic range spans multiple continents, with documented populations in Africa (Cameroon), Asia (Japan, South Korea), Europe, North America, Australia, and South America. As an annual grass, it completes its life cycle within a single growing season, reproducing via wind-dispersed seeds. The inflorescence typically bears silvery, shimmering spikelets that give the species its common name. Biological traits such as average lifespan, body dimensions, and dietary specifics follow typical patterns for annual grasses — drawing nutrients from soil through root absorption rather than consuming other organisms. The endangered status suggests populations may be declining due to habitat loss, land-use change, or invasive species pressure across parts of its range.

Killdeer

킬디어물떼새(Charadrius vociferus)는 IUCN 적색목록에서 관심 필요 없음(LC)으로 분류되어 있다. 서식 범위 전반에 걸쳐 광범위하게 분포하고 개체수가 안정적이며, 즉각적인 보전 우려가 없다.

Shared Countries

Both species can be found in 5 countries:

🇨🇴 Colombia 🇪🇨 Ecuador 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States