| Yellow-olive flatbill | |
|---|---|
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| Nominate subspecies in São Paulo, Brazil. | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Tyrannidae |
| Genus: | Tolmomyias |
| Species: | T. sulphurescens
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| Binomial name | |
| Tolmomyias sulphurescens (Spix, 1825)
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The yellow-olive flatbill or yellow-olive flycatcher (Tolmomyias sulphurescens) is a species of bird in the family Tyrannidae. It is found in tropical and subtopical forest and woodland in Central and South America, but over its range there are significant variations in plumage, iris colour and voice, leading to speculations that more than one species is involved. Its plumage is overall greenish-yellow, the lores are whitish, the crown is often greyish and some subspecies have a dusky patch on the auriculars. The flat bill is black above and pale pinkish or greyish below; similar to the yellow-margined flatbill, but unlike the grey-crowned flatbill.
- ^ BirdLife International (2016). "Tolmomyias sulphurescens". IUCN Red List of Threatened Species. 2016: e.T22699605A93739314. doi:10.2305/IUCN.UK.2016-3.RLTS.T22699605A93739314.en. Retrieved 11 November 2021.