- Rhynchocyclus olivaceus
Identification
15 cm
- Dark olive head and upperparts
- Bright green back
- Breast area with more or less prominent grey streaks on yellowish background
- Belly and lower underparts yellowish
- Wings with two ochre to buff wing bars and edging to flight feathers
- Large dark eye
- Whitish or grey eye-ring
Similar species
Very similar to Eye-ringed Flatbill (which see). Note the wing feather edgings to distinguish the two. Maybe even more similar to Western Olivaceous Flatbill which is mainly separated by voice and which should not overlap in range.
Distribution
South America: Southern Venezuela, Guyana, Suriname, French Guiana, to central and eastern Brazil.
Taxonomy
Eastern Olivaceous Flatbill and Western Olivaceous Flatbill were formerly considered a single species with the name of Olivaceous Flatbill.
Subspecies
Clements recognizes these subspecies[1]:
- R. o. guianensis: Southern Venezuela, the Guianas and northern Amazonian Brazil; also south Amazonian Brazil between Purus and Tapajos rivers, and northeast Peru
- R. o. sordidus: Brazil south of the Amazon (Rio Tapajós to northern Maranhão)
- R. o. olivaceus: North-central and eastern Brazil (eastern Pará; Pernambuco to Rio de Janeiro)
Habitat
Lower levels of humid lowland forests, thickets and swamps.
Behaviour
Diet
Their main diet consists of arthropods. They generally forage alone.
Vocalisation
Song is introduced with two long notes, mostly followed by 8-10 much shorter notes which may increase or decrease in pitch. Quality of the sound is buzzy or wheezing. Additionally gives a short stutter of around 6 notes which descend in quality.
References
- Clements, J. F., P. C. Rasmussen, T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, A. Spencer, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2023. The eBird/Clements checklist of Birds of the World: v2023. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
- Gill, F, D Donsker, and P Rasmussen (Eds). 2024. IOC World Bird List (v 14.2). Doi 10.14344/IOC.ML.14.2. http://www.worldbirdnames.org/
- Bates, J., G. M. Kirwan, and P. F. D. Boesman (2023). Eastern Olivaceous Flatbill (Rhynchocyclus olivaceus), version 1.0. In Birds of the World (B. K. Keeney, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.olifla3.01
- Birdforum Member observations
Recommended Citation
- BirdForum Opus contributors. (2024) Eastern Olivaceous Flatbill. In: BirdForum, the forum for wild birds and birding. Retrieved 7 December 2024 from https://www.birdforum.net/opus/Eastern_Olivaceous_Flatbill
External Links
GSearch checked for 2020 platform.1
