Yellow-olive Flatbill
Tolmomyias sulphurescens
Rather uneventful-looking flycatcher of tropical lowlands, in both humid and drier situations. Favors forest and woodland edges, and in semiopen areas with taller trees. Perches mainly at mid-levels, when often holds its tail slightly cocked. In Mexico and Central America, can be identified by its pale eyes accentuated by whitish spectacles, a rather broad bill that is pale below, and thin, pale pinkish legs; also note the yellowish edgings to the wing feathers, not forming distinct wingbars. High, lisping call easily passed off as an insect or a begging baby bird. Several similar species occur in South America, best identified by voice.
Identification
The yellow-olive flatbill or yellow-olive flycatcher (Tolmomyias sulphurescens) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Mexico, in every Central American country, on Trinidad, and in every mainland South American country except Chile.
Taxonomy
Genus: Tolmomyias; Family: Tyrannidae; Order: Passeriformes.
- Scientific name
- Tolmomyias sulphurescens
- Authority
- (Spix, 1825)
- Order
- Passeriformes
- Family
- Tyrannidae
- Genus
- Tolmomyias
Range and habitat
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: declining.
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds

Forest Penduline-Tit
Anthoscopus flavifrons
Tiny, drab bird with a sharp bill, a dull olive-green back, and buffy yellow underparts and forehead. Found in lowland rainforest, secondary forest, and sometimes plantations, usually in the canopy. Uncommon and inconspicuous, in pairs or small flocks. Similar to Yellow Penduline-Tit, but much duller and found in different habitat. Could be confused with Tit-Hylia, but duller overall, without streaking on the head and breast. Could also be confused with some dull sunbirds, but has a shorter, deeper-based, and sharper bill. The vocalizations are very high-pitched “sit” notes that are easily missed.

African Citril
Crithagra citrinelloides
A small seedeater with a sharp bill and a forked tail. The upperparts are olive-green and the underparts yellow. Males have a black face and plain yellow underparts. Females have a plain face, but are heavily streaked below. Found at middle and high elevations in a variety of habitats including forest edge, gardens, cultivation, moist scrub, and woodland. Usually in small flocks. Similar to Southern Citril, but there is virtually no overlap in range, and the male is easily separated by its black face. The song is a fast jumble of high-pitched twitters and whistles.

Hudson's Canastero
Asthenes hudsoni
Distinctive, heavily streaked ovenbird with a long spiky tail. Note the thin black streaks on the flanks. Found deep inside stands of tall grass and sedges near marshy areas, including in sand dune systems. The song is an ascending trill.
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