云雀 vs Polynesian Tree Snail

Alauda arvensis compared with Partula garrettii

Key Differences

• 云雀 is Vulnerable while Polynesian Tree Snail is Extinct.

Taxonomic Classification

Rank	云雀	Polynesian Tree Snail
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum	Chordata (脊索动物门)	Mollusca (软体动物门)
Class	Aves (鳥綱)	Gastropoda (腹足纲)
Order	Passeriformes (雀形目)	Stylommatophora (柄眼目)
Family	Alaudidae	Partulidae
Genus	Alauda	Partula
Species	Alauda arvensis	Partula garrettii

Evolutionary Relationship

云雀 and Polynesian Tree Snail share a common ancestor at the Kingdom level: Animalia. (动物界)

Conservation Status

云雀

VU — Vulnerable

Polynesian Tree Snail

EX — Extinct

Physical Characteristics

Attribute	云雀	Polynesian Tree Snail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

云雀

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Widely distributed across Europe (5 countries), North America (Canada, United States), and Oceania and the Pacific (Australia, New Zealand). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Polynesian Tree Snail

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

云雀

云雀（Alauda arvensis）以飞行中歌唱的复杂悦耳鸣声在欧洲文学和诗歌中广受赞誉。它们在欧洲和亚洲的开阔农田、草地和荒野上空垂直飞翔数百米，同时发出长达一小时的连续鸣唱。雄鸟可发出700多种独特的鸣唱短句。曾经在欧洲农田中极为丰富的云雀，由于农业集约化，自1970年以来种群数量已下降70%以上。