Large False Serotine vs Olive-Side Flycatcher

Hesperoptenus tomesi compared with Contopus cooperi

Key Differences

• Large False Serotine is Vulnerable while Olive-Side Flycatcher is Near Threatened.

Taxonomic Classification

Rank	Large False Serotine	Olive-Side Flycatcher
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Tyrannidae
Genus	Hesperoptenus	Contopus
Species	Hesperoptenus tomesi	Contopus cooperi

Evolutionary Relationship

Large False Serotine and Olive-Side Flycatcher share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Large False Serotine

VU — Vulnerable

Olive-Side Flycatcher

NT — Near Threatened

Physical Characteristics

Attribute	Large False Serotine	Olive-Side Flycatcher
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large False Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Olive-Side Flycatcher

Habitat

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

Range

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

Olive-Side Flycatcher

Olive-Side Flycatcher (Contopus cooperi) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.