白头鹞 vs 灰澤鵟〔白尾鷂，北方灰鷂〕

Circus aeruginosus compared with Circus cyaneus

Key Differences

• 白头鹞 is Endangered while 灰澤鵟〔白尾鷂，北方灰鷂〕 is Least Concern.

Taxonomic Classification

Rank	白头鹞	灰澤鵟〔白尾鷂，北方灰鷂〕
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Aves (鳥綱)	Aves (鳥綱)
Order same	Accipitriformes (鷹形目)	Accipitriformes (鷹形目)
Family same	Accipitridae (Hawks & Eagles)	Accipitridae (Hawks & Eagles)
Genus same	Circus	Circus
Species	Circus aeruginosus	Circus cyaneus

Evolutionary Relationship

白头鹞 and 灰澤鵟〔白尾鷂，北方灰鷂〕 share a common ancestor at the Genus level: Circus.

Conservation Status

白头鹞

EN — Endangered

灰澤鵟〔白尾鷂，北方灰鷂〕

LC — Least Concern

Physical Characteristics

Attribute	白头鹞	灰澤鵟〔白尾鷂，北方灰鷂〕
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

白头鹞

Habitat

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

Range

Found across Asia (Taiwan) and Europe (6 countries). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

灰澤鵟〔白尾鷂，北方灰鷂〕

Habitat

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

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Venezuela).

白头鹞

白腹鹞（Circus aeruginosus）在IUCN红色名录中被列为濒危（EN）物种。在野外面临高度灭绝风险，种群数量显著下降，生存面临持续威胁。

灰澤鵟〔白尾鷂，北方灰鷂〕

白尾鹞（Circus cyaneus）在IUCN红色名录中被评估为无危（LC）。在其分布范围内广泛存在、数量丰富，种群稳定，目前没有紧迫的保护问题。

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇱🇺 Luxembourg 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden