Chestnut-breasted Whiteface vs Common Loon

Aphelocephala pectoralis compared with Gavia immer

Key Differences

• Chestnut-breasted Whiteface is Near Threatened while Common Loon is Not Evaluated.

Taxonomic Classification

Rank	Chestnut-breasted Whiteface	Common Loon
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Gaviiformes (Gaviiformes)
Family	Acanthizidae	Gaviidae
Genus	Aphelocephala	Gavia
Species	Aphelocephala pectoralis	Gavia immer

Evolutionary Relationship

Chestnut-breasted Whiteface and Common Loon share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Chestnut-breasted Whiteface

NT — Near Threatened

Common Loon

NE — Not Evaluated

Physical Characteristics

Attribute	Chestnut-breasted Whiteface	Common Loon
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut-breasted Whiteface

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Loon

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Chestnut-breasted Whiteface

The Chestnut-breasted Whiteface (Aphelocephala pectoralis) is a species in the genus Aphelocephala. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Common Loon

<em>Gavia immer</em>, the common loon or great northern diver, is a large aquatic bird in the family Gaviidae, known for its haunting, yodeling calls across northern lakes. It is found in Belgium, Denmark, Norway, Sweden, and the United States, breeding on freshwater lakes in boreal and subarctic regions and wintering along marine coastlines. The common loon is adept in aerial, terrestrial, and aquatic environments, though it is most highly specialized for diving, using its strong feet positioned far back on its body to pursue fish underwater. It typically feeds on fish, supplemented by crustaceans and aquatic invertebrates. Its striking summer plumage features a black-and-white checkered back and a deep black head with a characteristic white necklace pattern. The species has not been evaluated for IUCN conservation status. Common loons require clear, fish-rich lakes for successful breeding and are sensitive to water quality degradation and human disturbance at nesting sites. Their distinctive calls are emblematic of wilderness in North America and Scandinavia.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway