Data Zone
Justification of Red List category
This species is known from a small range and is restricted to a specialised forest habitat that is under threat from logging, agriculture, dam construction and encroachment. The species has been suspected to decline moderately rapidly and so ongoing and future declines over three generations have been suspected to be at least >30%. Therefore, the species is now listed as Vulnerable, but further information regarding the rate of decline may mean the species's status warrants reassessment.
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
In the Brazilian Red List (MMA 2014) the species was predicted to lose 30-59% of its habitat by 2020 due to agriculture, deforestation and hydroelectric dam construction. Pending further information, the rate of ongoing and future declines over 3 generations (c.15 years) are suspected to be at least >30% over 3 generations.
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).
This small insectivore inhabits the canopy and borders of várzea forest in the lowlands.
The species is predicted to lose 30-59% of its habitat by 2020 due to agriculture, deforestation and hydroelectric dam construction (MMA 2014). 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.
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.
Text account compilers
Wheatley, H., Sharpe, C.J., Gilroy, J., Butchart, S., Westrip, J.
Contributors
Whittaker, A., Cohn-Haft, M.
Recommended citation
BirdLife International (2024) Species factsheet: Klages's Antwren Myrmotherula klagesi. Downloaded from
https://datazone.birdlife.org/species/factsheet/klagess-antwren-myrmotherula-klagesi on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.