Blacktail spurdog vs Yellow-browed Sparrow

Squalus melanurus compared with Ammodramus aurifrons

Key Differences

• Blacktail spurdog is Data Deficient while Yellow-browed Sparrow is Least Concern.

Taxonomic Classification

Rank	Blacktail spurdog	Yellow-browed Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Elasmobranchii	Aves (Birds)
Order	Squaliformes (Squaliformes)	Passeriformes (Songbirds)
Family	Squalidae	Passerellidae
Genus	Squalus	Ammodramus
Species	Squalus melanurus	Ammodramus aurifrons

Evolutionary Relationship

Blacktail spurdog and Yellow-browed Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blacktail spurdog

DD — Data Deficient

Yellow-browed Sparrow

LC — Least Concern

Physical Characteristics

Attribute	Blacktail spurdog	Yellow-browed Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blacktail spurdog

Yellow-browed Sparrow

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Blacktail spurdog

The Blacktail spurdog (Squalus melanurus) is a species in the genus Squalus. It is currently classified as Data Deficient on the IUCN Red List.

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.