- Ancistrops strigilatus
Identification
19 cm, conspicuously streaked both above and below.
Upperside including crown olive brown with buff streaking, underside yellowish buff with dark streaking. Wings and tail are chestnut. In the head is a pale almost complete eye-ring continuing rearwards as a supercilium and below that a dark eye-line. Bill is heavy and pale with a hook at the tip that is described as more or less strong depending on which resource you check.
Similar species
Shorter tail, larger bill, and heavier neck separates this from a variety of Foliage-Gleaners
Distribution
South America: found in Amazonian basin of south-eastern Colombia, eastern Ecuador, eastern Peru, north-western Bolivia and western to central Brazil.
Taxonomy
Subspecies
There are 2 subspecies[1]:
- A. s. strigilatus:
- A. s. cognitus:
- Central Brazil (lower Rio Tapajós)
Some authorities have raised doubt regarding the subspecies really being different.
Habitat
Lowland moist forest mainly on terra firme, sometimes in varzea.
Behaviour
Mostly seen together with mixed species flocks in canopy or subcanopy where it feeds on smaller invertebrates. Spends at least part of the time on larger branches in the semiopen.
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Ridgely, R.S., & P.J. Greenfield (2001). "The Birds of Ecuador - Field Guide". Comstock/Cornell Paperbacks. ISBN 978-0-8014-8721-7
- Schulenberg, T. S. & Stotz, D. F. & Lane, D. F. & O'Neill, J. P. & Parker III, T. A. & Egg, A. B. (2010). Birds of Peru: Revised and Updated Edition. Princeton: Princeton University Press. ISBN 978-0691130231
- Ber van Perlo. 2009. A field guide to the Birds of Brazil. Oxford University Press, New York, NY, USA. ISBN 978-0-19-530155-7
- Avibase
- Remsen, Jr., J. V. (2020). Chestnut-winged Hookbill (Ancistrops strigilatus), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.chwhoo1.01
Recommended Citation
- BirdForum Opus contributors. (2024) Chestnut-winged Hookbill. In: BirdForum, the forum for wild birds and birding. Retrieved 2 May 2024 from https://www.birdforum.net/opus/Chestnut-winged_Hookbill
