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Yellow-winged Flatbill - BirdForum Opus

Photo by Photo by Leif G
Silanche Reserve, Ecuador, October 2009

Alternative name: Yellow-winged Flycatcher

Tolmomyias flavotectus

Identification

13-13.5 cm - a species with a largish head, greenish plumage, broad yellow edges to wing feathers including greater coverts but no wing bars.

  • Crown and side of head grey
  • Eye-ring white
  • Eye dark (brown to grey)
  • Mantle and back olive-green
  • Wings dusky but with broad yellow edges to wing feathers including greater coverts but no wing bars
  • White speculum usually visible at base of primaries of folded wing
  • Breast grey becoming yellowish towards the rear
  • Belly to undertail coverts yellow

Similar Species

Yellow-olive Flatbill differs in lacking white speculum at base of primaries and in having usually narrower yellow edges to wings that however does give hint of wing bar. Eyes usually paler than those in this species.
The formerly conspecific Yellow-margined Flatbill does not overlap in range but differs in narrower yellow edges to wing feathers. Probably best separated by voice.

Photo by Gerald Friesen
Darien Region, Panama, February 2015

Distribution

Central and South America: Southern Nicaragua, Costa Rica, and Panama to western Colombia and north-western Ecuador (everywhere west of the Andes).

Taxonomy

This is a monotypic species[1].

This species was formerly included within Yellow-margined Flatbill.

Habitat

Wet forests including taller second growth and plantations. In western Panama also found in swamp forests.

Behaviour

Concentrates on mid-story to canopy, but seems to go lower at edge of forests. Assumed to use similar food capture process as Yellow-margined Flatbill and to live from mainly smaller invertebrates with only a little fruit.

Vocalisation

Song has a 1-4 structure, first one note, a short pause, then four more notes more closely together. First note usually of lower pitch, the rest identical.

References

  1. 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/
  2. 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/
  3. Ridgely, R.S., & J.A. Gwynne jnr. (1989). "A Guide to the Birds of Panama - with Costa Rica, Nicaragua, and Honduras". Second Edition. Princeton University Press, USA. ISBN 0-691-02512-6
  4. del Hoyo, J., I. Caballero, G. M. Kirwan, N. Collar, and P. F. D. Boesman (2022). Yellow-winged Flycatcher (Tolmomyias flavotectus), 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.yemfly2.01

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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