Thick-billed Siskin vs Yellow-faced Siskin

Spinus crassirostris compared with Spinus yarrellii

Key Differences

• Thick-billed Siskin is Least Concern while Yellow-faced Siskin is Vulnerable.

Taxonomic Classification

Rank	Thick-billed Siskin	Yellow-faced Siskin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Passeriformes (Songbirds)	Passeriformes (Songbirds)
Family same	Fringillidae	Fringillidae
Genus same	Spinus	Spinus
Species	Spinus crassirostris	Spinus yarrellii

Evolutionary Relationship

Thick-billed Siskin and Yellow-faced Siskin share a common ancestor at the Genus level: Spinus.

Conservation Status

Thick-billed Siskin

LC — Least Concern

Yellow-faced Siskin

VU — Vulnerable

Physical Characteristics

Attribute	Thick-billed Siskin	Yellow-faced Siskin
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Thick-billed Siskin

Habitat

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

Range

Found in Norway.

Yellow-faced Siskin

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway