Humpback smooth hound vs Yellow-browed Sparrow

Mustelus whitneyi compared with Ammodramus aurifrons

Key Differences

• Humpback smooth hound is Critically Endangered while Yellow-browed Sparrow is Least Concern.

Taxonomic Classification

Rank	Humpback smooth hound	Yellow-browed Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Chondrichthyes (Cartilaginous Fish)	Aves (Birds)
Order	Carcharhiniformes (Ground Sharks)	Passeriformes (Songbirds)
Family	Triakidae	Passerellidae
Genus	Mustelus	Ammodramus
Species	Mustelus whitneyi	Ammodramus aurifrons

Evolutionary Relationship

Humpback smooth hound and Yellow-browed Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Humpback smooth hound

CR — Critically Endangered

Yellow-browed Sparrow

LC — Least Concern

Physical Characteristics

Attribute	Humpback smooth hound	Yellow-browed Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Humpback smooth hound

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate grasslands and steppes, and montane grasslands and shrublands, among 5 distinct biome types within the Neotropic biogeographic realm.

Range

Found in Chile. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Yellow-browed Sparrow

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Yellow-browed Sparrow

Yellow-browed Sparrow (Ammodramus aurifrons) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.