Black-billed Flycatcher vs Willow Warbler

Aphanotriccus audax compared with Phylloscopus trochilus

Key Differences

• Black-billed Flycatcher is Near Threatened while Willow Warbler is Vulnerable.

Taxonomic Classification

Rank	Black-billed Flycatcher	Willow Warbler
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	Tyrannidae	Phylloscopidae
Genus	Aphanotriccus	Phylloscopus
Species	Aphanotriccus audax	Phylloscopus trochilus

Evolutionary Relationship

Black-billed Flycatcher and Willow Warbler share a common ancestor at the Order level: Passeriformes. (Songbirds)

Conservation Status

Black-billed Flycatcher

NT — Near Threatened

Willow Warbler

VU — Vulnerable

Physical Characteristics

Attribute	Black-billed Flycatcher	Willow Warbler
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-billed Flycatcher

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Norway, and Panama. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Willow Warbler

Habitat

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

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-billed Flycatcher

The Black-billed Flycatcher (Aphanotriccus audax) is a species in the genus Aphanotriccus. It is currently classified as Near Threatened on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Willow Warbler

Willow Warbler (Phylloscopus trochilus) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway