希曼氏鷗 vs 小黑背鷗〔灰林銀鷗〕

Larus heermanni compared with Larus fuscus

Key Differences

• 希曼氏鷗 is Near Threatened while 小黑背鷗〔灰林銀鷗〕 is Least Concern.

Taxonomic Classification

Rank	希曼氏鷗	小黑背鷗〔灰林銀鷗〕
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	Charadriiformes (鸻形目)	Charadriiformes (鸻形目)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus heermanni	Larus fuscus

Evolutionary Relationship

希曼氏鷗 and 小黑背鷗〔灰林銀鷗〕 share a common ancestor at the Genus level: Larus.

Conservation Status

希曼氏鷗

NT — Near Threatened

小黑背鷗〔灰林銀鷗〕

LC — Least Concern

Physical Characteristics

Attribute	希曼氏鷗	小黑背鷗〔灰林銀鷗〕
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

希曼氏鷗

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

小黑背鷗〔灰林銀鷗〕

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

小黑背鷗〔灰林銀鷗〕

小黑背鸥（Larus fuscus）被IUCN红色名录列为无危（LC）物种。在其分布范围内广泛分布，种群数量丰富稳定，无紧迫的保护问题。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway