Black-billed Flycatcher vs Choco Warbler

Aphanotriccus audax compared with Myiothlypis chlorophrys

Key Differences

• Black-billed Flycatcher is Near Threatened while Choco Warbler is Least Concern.

Taxonomic Classification

Rank	Black-billed Flycatcher	Choco Warbler
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Aves (chim)	Aves (chim)
Order same	Passeriformes (bộ Sẻ)	Passeriformes (bộ Sẻ)
Family	Tyrannidae	Parulidae
Genus	Aphanotriccus	Myiothlypis
Species	Aphanotriccus audax	Myiothlypis chlorophrys

Evolutionary Relationship

Black-billed Flycatcher and Choco Warbler share a common ancestor at the Order level: Passeriformes. (bộ Sẻ)

Conservation Status

Black-billed Flycatcher

NT — Near Threatened

Choco Warbler

LC — Least Concern

Physical Characteristics

Attribute	Black-billed Flycatcher	Choco 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.

Choco Warbler

Habitat

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

Range

Found in Ecuador.

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.

Choco Warbler

The Choco Warbler (Myiothlypis chlorophrys) is a small, ground-associated warbler in the family Parulidae (New World warblers), endemic to the subtropical Andean foothills of western Ecuador in the Chocó biogeographic region. It belongs to the diverse genus Myiothlypis (formerly placed in Basileuterus), a group of largely terrestrial neotropical warblers that forage in the undergrowth of humid montane forests. The Choco Warbler is characterised by olive-green upperparts, yellow underparts, and a distinctive supercilium pattern on the head. It inhabits the dense undergrowth of humid foothill and lower montane forest at elevations between approximately 600 and 1,500 metres, foraging close to the ground among fallen leaves and low shrubs for small invertebrates. Its range appears largely restricted to southwestern and northwestern Ecuador in the humid Pacific slope forest zone, though the precise distribution boundary with related species is still being refined taxonomically. The IUCN classifies this species as Least Concern. Ecuador's Pacific slope forests face considerable pressure from agricultural expansion — particularly banana, cacao, and palm oil cultivation — and human settlement, though the species appears to tolerate some degree of forest degradation within its range.