Aratathomas's Yellow-shouldered Bat vs Cock-tailed Tyrant

Sturnira aratathomasi compared with Alectrurus tricolor

Key Differences

• Aratathomas's Yellow-shouldered Bat is Near Threatened while Cock-tailed Tyrant is Vulnerable.

Taxonomic Classification

Rank	Aratathomas's Yellow-shouldered Bat	Cock-tailed Tyrant
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class	Mammalia (포유류)	Aves (새)
Order	Chiroptera (박쥐)	Passeriformes (참새목)
Family	Phyllostomidae	Tyrannidae
Genus	Sturnira	Alectrurus
Species	Sturnira aratathomasi	Alectrurus tricolor

Evolutionary Relationship

Aratathomas's Yellow-shouldered Bat and Cock-tailed Tyrant share a common ancestor at the Phylum level: Chordata. (척삭동물)

Conservation Status

Aratathomas's Yellow-shouldered Bat

NT — Near Threatened

Cock-tailed Tyrant

VU — Vulnerable

Physical Characteristics

Attribute	Aratathomas's Yellow-shouldered Bat	Cock-tailed Tyrant
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aratathomas's Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Cock-tailed Tyrant

Habitat

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

Range

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

Aratathomas's Yellow-shouldered Bat

The Aratathomas's Yellow-shouldered Bat (Sturnira aratathomasi) is a species in the genus Sturnira. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Cock-tailed Tyrant

The cock-tailed tyrant (Alectrurus tricolor) is a striking and unusual flycatcher in the family Tyrannidae, named for the remarkable elongated, spatula-shaped outer tail feathers of the male, which can exceed the body length and are displayed during aerial courtship flights over open grasslands. The species inhabits wet and seasonally flooded grasslands, cerrado savanna, and campos in the interior of South America, including central Brazil, eastern Bolivia, Paraguay, and northeastern Argentina — not Norway, as erroneous database entries suggest. Males combine conspicuous black, white, and rufous plumage with their extraordinary tail streamers in an elaborate display to attract females on leks; females are cryptically streaked brown. The cock-tailed tyrant is a ground- and low-vegetation forager, preying on insects and other small invertebrates gleaned from grass stems and caught in aerial sallies. The species is classified as Vulnerable by the IUCN due to extensive and continuing conversion and degradation of its native Neotropical grassland habitat through intensive soy and sugarcane agriculture, cattle ranching, fire management changes, and drainage of seasonally flooded grasslands. Populations have declined significantly across much of its range, particularly in Brazil and Paraguay. The species is a flagship for threatened grassland conservation in South America, where relatively little protection has historically been directed at open-country habitats compared to forest ecosystems.