Yellow-margined Flatbill

Tolmomyias assimilis

IUCN: Least Concern

Taxonomy

Order
Passeriformes
Family
Tyrannidae
Genus
Tolmomyias
eBird Code
yemfly1

Subspecies (8)

  • Tolmomyias assimilis assimilis

    central Brazil, south of the Amazon River, eastward to the Rio Canumã/Rio Sucunduri (from Tefé, in central Amazonas, eastward to Rio Tapajós, in western Pará)

  • Tolmomyias assimilis calamae

    tropical northern Bolivia and southwestern Brazil (southeastern Amazonas)

  • Tolmomyias assimilis clarus

    Peru immediately north of Rio Marañón southward to northern Puno

  • Tolmomyias assimilis examinatus

    southeastern Venezuela to the Guianas and northeastern Brazil (Pará and Amapá)

  • Tolmomyias assimilis neglectus

    eastern Colombia to southwestern Venezuela and northwestern Amazonian Brazil (Rio Negro region of northern Amazonas)

  • Tolmomyias assimilis obscuriceps

    southeastern Colombia (Meta) to northeastern Ecuador and northeastern Peru (eastern Loreto)

  • Tolmomyias assimilis paraensis

    northeastern Brazil (eastern Pará and northwestern Maranhão)

  • Tolmomyias assimilis sucunduri

    south-central Amazonian Brazil, between the Rio Canumã/Rio Sucunduri and the lower Rio Tapajós

Data Sources

Taxonomy data from AviList 2025.