River Tyrannulet
- kingdom: Animalia
- phylum: Chordata
- class: Aves
- order: Passeriformes
- family: Tyrannidae
- genus: Serpophaga
- species: Serpophaga hypoleuca
Riberalta
El Beni
Bolivia
Chapada dos Guimarães
Mato Grosso
Santarém
Pará
Brazil
Puerto Nariño
Amazonas
Colombia
Iquitos
Loreto
Peru
Tucupita
Delta Amacuro
Venezuela