Brown egg frog vs ヒバリ

Ctenophryne geayi compared with Alauda arvensis

Key Differences

• Brown egg frog is Least Concern while ヒバリ is Vulnerable.

Taxonomic Classification

Rank	Brown egg frog	ヒバリ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Amphibia (両生類)	Aves (鳥類)
Order	Anura (カエル)	Passeriformes (スズメ目)
Family	Microhylidae	Alaudidae
Genus	Ctenophryne	Alauda
Species	Ctenophryne geayi	Alauda arvensis

Evolutionary Relationship

Brown egg frog and ヒバリ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Brown egg frog

LC — Least Concern

ヒバリ

VU — Vulnerable

Physical Characteristics

Attribute	Brown egg frog	ヒバリ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown egg frog

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Found in Venezuela.

ヒバリ

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.

Brown egg frog

The Brown Egg Frog (Ctenophryne geayi) is a species in the genus Ctenophryne. It is currently classified as Least Concern on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

ヒバリ

ヒバリ（Alauda arvensis）は、飛翔中に歌う複雑で美しい声でヨーロッパの文学と詩に称えられてきました。ヨーロッパとアジア全域の開けた農地、草地、荒野の上空を数百メートルも垂直に舞い上がりながら、最長1時間にわたって途切れなく歌い続けます。雄は700種類以上の独特なさえずりを発することができます。かつてヨーロッパの農地で非常に多かったヒバリの個体数は、農業の集約化により1970年代から70%以上減少しています。