Brook Floater vs Chestnut-backed Thrush

Alasmidonta varicosa compared with Geokichla dohertyi

Key Differences

• Brook Floater is Vulnerable while Chestnut-backed Thrush is Near Threatened.

Taxonomic Classification

Rank	Brook Floater	Chestnut-backed Thrush
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (Birds)
Order	Unionida (Unionida)	Passeriformes (Songbirds)
Family	Unionidae	Turdidae
Genus	Alasmidonta	Geokichla
Species	Alasmidonta varicosa	Geokichla dohertyi

Evolutionary Relationship

Brook Floater and Chestnut-backed Thrush share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Chestnut-backed Thrush

NT — Near Threatened

Physical Characteristics

Attribute	Brook Floater	Chestnut-backed Thrush
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brook Floater

Habitat

Native to North America, inhabiting ecosystems characteristic of the region.

Range

Found in United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Chestnut-backed Thrush

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.

Brook Floater

The Brook Floater (Alasmidonta varicosa) is a species in the genus Alasmidonta. It is currently classified as Vulnerable on the IUCN Red List. Native to North America, inhabiting ecosystems characteristic of the region.

Chestnut-backed Thrush

The Chestnut-backed Thrush (Geokichla dohertyi) is a species in the genus Geokichla. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.