• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
Although this species may have a restricted range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size may be moderately small to large, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population is suspected to number fewer than 50,000 mature individuals (Partners in Flight 2022); thus it is here placed in the band 20,000-49,999 mature individuals. The species is described as common in suitable habitat (Kroodsma and Brewer 2020).

Trend justification

The population trend has not been investigated. Tree cover within the range is lost at a rate of 4% over ten years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). The species is however not restricted to forests; it is also found in any type of dense vegetation and edge habitat (Kroodsma and Brewer 2020); consequently, the current rate of tree cover loss may not be affecting the population. Therefore, in the absence of evidence for any declines or substantial threats, the population is suspected to be stable.

Text account compilers
Hermes, C.

Contributors
Butchart, S., Ekstrom, J. & Miller, E.

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Recommended citation
BirdLife International (2024) Species factsheet: Riverside Wren Cantorchilus semibadius. Downloaded from https://datazone.birdlife.org/species/factsheet/riverside-wren-cantorchilus-semibadius 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.