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Klages's Antwren Myrmotherula klagesi
BirdLife is updating this factsheet for the 2016 Red List
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This species is known from a small range and is restricted to a specialised forest habitat that is under threat from logging and encroachment. However, the range is not yet severely fragmented or restricted to few locations. For these reasons, the species is classified as Near Threatened.

Taxonomic source(s)
SACC. 2006. A classification of the bird species of South America. Available at: #

10 cm. A small short-tailed, long-billed heavily streaked antwren. Male black above streaked white; white below streaked black; wings black with two broad white wing bars; short-tail black tipped white. Female differs in crown being black streaked narrowly with buff; below ochraceous with fine black streaking, whiter on belly. Similar spp. Very similar to Streaked Antwren M. surinamensis and Cherrie's Antwren M. cherriei, though only sympatric with the former. Male Streaked has a semi-concealed white dorsal patch (very hard to see in the field). Female differs from Streaked in having crown primarily black streaked buff not orange-rufous streaked black; also lacks black streaking on the throat, though this can be very fine and hard to see on Streaked. Voice A series of 5-7 soft musical cheedi notes. Hints Remains high in the canopy and borders of várzea, especially on islands.

Distribution and population
Myrmotherula klagesi occurs in Roraima, Amazonas and Pará, Brazil (Ridgely and Tudor 1994, A. Whittaker in litt. 1999). It is known from only a few areas, and there are no recent records for Pará, but it is common to abundant on the large and protected Anavilhanas Archipelago in the rio Negro (Ridgely and Tudor 1994, M. Cohn-Haft in litt. 1999, A. Whittaker in litt. 1999).

Population justification
This is a poorly known species and its population size has not been quantified, but it is described as fairly common to common.

Trend justification
The species's population trend is unknown, although it is suspected to be decreasing in line with rates of habitat loss and degradation.

This small insectivore inhabits the canopy and borders of várzea forest in the lowlands.

Intensive logging and selective exploitation of kapok trees Ceiba pentandra are accelerating deforestation of the várzea forests where it may occur, and the presence of an established industrial timber infrastructure suggests that rates of logging are likely to be maintained (Dinerstein et al. 1995, Stattersfield et al. 1998).

Conservation Actions Underway
Conservation Actions Proposed
Conduct surveys of suitable habitats within and surrounding the known range to determine its true distribution and abundance. Ensure that remaining tracts of várzea forest receive adequate protection.

del Hoyo, J.; Elliott, A.; Christie, D. 2003. Handbook of the Birds of the World, vol. 8: Broadbills to Tapaculos. Lynx Edicions, Barcelona, Spain.

Dinerstein, E.; Olson, D. M.; Graham, D. J.; Webster, A. L.; Primm, S. A.; Bookbinder, M. P.; Ledec, G. 1995. A conservation assesssment of the terrestrial ecoregions of Latin America and the Caribbean. World Bank, Washington, D.C.

Ridgely, R. S.; Tudor, G. 1994. The birds of South America. University of Texas Press, Austin, Texas.

Stattersfield, A. J.; Crosby, M. J.; Long, A. J.; Wege, D. C. 1998. Endemic bird areas of the world: priorities for bird conservation. BirdLife International, Cambridge, U.K.

Stotz, D. F.; Fitzpatrick, J. W.; Parker, T. A.; Moskovits, D. K. 1996. Neotropical birds: ecology and conservation. University of Chicago Press, Chicago.

Further web sources of information
Explore HBW Alive for further information on this species

Search for photos and videos, and hear sounds of this species from the Internet Bird Collection

Text account compilers
Butchart, S., Gilroy, J., Sharpe, C J

Cohn-Haft, M., Whittaker, A.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2016) Species factsheet: Myrmotherula klagesi. Downloaded from on 28/10/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from on 28/10/2016.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Near Threatened
Family Thamnophilidae (Antbirds)
Species name author Todd, 1927
Population size Unknown mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 11,800 km2
Country endemic? Yes
Links to further information
- Additional Information on this species