Data Zone
Taxonomic note
Hylexetastes perrotii and H. uniformis were previously lumped as H. perrotii (del Hoyo and Collar 2016) and prior to that split into Hylexetastes perrotii (Ridgely and Tudor 1994), H. uniformis (Ridgely and Tudor 1994) and H. brigidai (da Silva et al. 1995). However, the genetic analyses of Azuaje-Rodríguez et al. (2020) showed that despite close similarities in vocalisations, the genus is composed of three major lineages with diagnostic plumage differences (da Silva et al. 1995, Derryberry et al. 2012): perrotii, stresemanni, and uniformis. Monotypic.
Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2023. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 8. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v8_Dec23.zip.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2023 | Least Concern | |
| 2016 | Not Recognised | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Not Recognised |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 1,200,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | 2017-2032 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
| Generation length | 4.92 years | - | - | - |
| Number of subpopulations | 1 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as uncommon to rare and occurring at low densities (Stotz et al. 1996, Marantz et al. 2021).
Trend justification: The population is feared to be declining as a consequence of habitat loss. The species is described as sensitive to habitat modification; despite some tolerance of selectively cut forest is it not found in young secondary stands (Marantz et al. 2021).Tree cover loss is low within the range, amounting to 3% over three generations (14.8 years; Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). Given the species' sensitivity to forest degradation, population declines may be steeper than the rate of tree cover loss suggests; precautionarily, they are here placed in the band 1-9% over three generations.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Brazil | extant | native | yes | |||
| French Guiana | extant | native | yes | |||
| Guyana | extant | native | yes | |||
| Suriname | extant | native | yes | |||
| Venezuela | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Brazil | Área de Relevante Interesse Ecológico Projeto Dinâmica Biológica de Fragmentos Florestais e Entorno |
| Brazil | Parque Nacional Montanhas do Tumucumaque |
| French Guiana | Montagne Kaw |
| French Guiana | Nouragues |
| French Guiana | Parc Amazonien de Guyane et Saül |
| French Guiana | Trinité |
| Suriname | Bakhuys mountains |
| Suriname | Boven Coesewijne Nature Reserve (BCNR) |
| Suriname | Brownsberg Nature Park (BB) |
| Suriname | Centraal Suriname Nature Reserve (CSNR) |
| Suriname | Lely mountain |
| Suriname | Nassau mountain |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Dry | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Swamp | suitable | resident |
| Altitude | 0 - 600 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Small-holder grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
|||||||||
| Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Red-billed Woodcreeper Hylexetastes perrotii. Downloaded from
https://datazone.birdlife.org/species/factsheet/red-billed-woodcreeper-hylexetastes-perrotii on 23/11/2024.
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 23/11/2024.