- Frederickena unduligera
Identification
Bill is very stout.
Male: Black throat and upper breast black, rest of body black with faint wavy white bars. Female rufous barred black, about equal with on upper and narrower black on lower parts; tail black and grey.
Similar species
Fulvous Antshrike; differs mostly in voice and female plumage. Female Fulvous Antshrike has a more reddish, warmer color than the Undulated Antshrike and she is more heavily barred.
Distribution
Bolivia, Brazil, and Peru; everywhere scarce and occurs in a patchy distribution.
Taxonomy
Closely related to Black-throated Antshrike.
Subspecies[1]
There are three subspecies:
- F. u. unduligera:
- North-western Amazonian Brazil on upper Rio Negro
- F. u. diversa:
- F. u. pallida:
- South-western Amazonian Brazil south of the Amazon; northern Bolivia (?)
Fulvous Antshrike (Frederickena fulva) was considered a subspecies of F. unduligera, but is now considered a separate species.[1][2]
Habitat
Moist lowland forests.
Behaviour
Unobtrusive: generally difficult to detect.
References
- Clements, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
- Gill, F and D Donsker (Eds). 2010. IOC World Bird Names (version 2.7). Available at http://www.worldbirdnames.org/.
- Birdforum thread discussing the taxonomy of Undulated Antshrike
- Ridgely and Tudor 2009. Field guide to the songbirds of South America - The Passerines. University of Texas Press. ISBN 978-0-292-71979-8
- SACC proposal to split Fulvous Antshrike
Recommended Citation
- BirdForum Opus contributors. (2024) Undulated Antshrike. In: BirdForum, the forum for wild birds and birding. Retrieved 10 September 2024 from https://www.birdforum.net/opus/Undulated_Antshrike
