Brook Floater vs Gray-breasted Martin

Alasmidonta varicosa compared with Progne chalybea

Key Differences

• Brook Floater is Vulnerable while Gray-breasted Martin is Least Concern.

Taxonomic Classification

Rank	Brook Floater	Gray-breasted Martin
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Mollusca (Mollusks)	Chordata (Chordates)
Class	Bivalvia (Bivalvia)	Aves (Birds)
Order	Unionida (Unionida)	Passeriformes (Songbirds)
Family	Unionidae	Hirundinidae
Genus	Alasmidonta	Progne
Species	Alasmidonta varicosa	Progne chalybea

Evolutionary Relationship

Brook Floater and Gray-breasted Martin share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Brook Floater

VU — Vulnerable

Gray-breasted Martin

LC — Least Concern

Physical Characteristics

Attribute	Brook Floater	Gray-breasted Martin
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.

Gray-breasted Martin

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Gray-breasted Martin

Gray-breasted Martin (Progne chalybea) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.