Data Zone
Justification of Red List category
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence under 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 size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (under 10,000 mature individuals with a continuing decline estimated to be over 10% in ten years or three generations, or with a specified population structure). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (over 30% decline over ten years or three generations). For these reasons the species is evaluated as Least Concern.
Population justification
The global population size has not been quantified, but this species is described as 'fairly common' (Stotz et al. 1996). This species is suspected to lose 8.6-9.3% of suitable habitat within its distribution over 14 years based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). Given the susceptibility of the species to fragmentation and/or edge effects, it is therefore suspected to decline by 0-25% over three generations.
Trend justification
This species is suspected to lose 8.6-9.3% of suitable habitat within its distribution over three generations (14 years) based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). Given the susceptibility of the species to fragmentation and/or edge effects, it is therefore suspected to decline by <25% over three generations.
Race X. c. napensis occurs on lower Andean slopes and adjacent Amazonian lowlands from southern Colombia (southeastern Nariño, western Caquetá) south through eastern Ecuador to northeastern Peru (south to Rio Marañón). Race X. c. chunchotambo occurs on lower Andean slopes in eastern & northeastern Peru (south of Rio Marañón to Ucayali and Junín). X. c. brevirostris occurs on the Andean foothills and adjacent lowlands in southeastern Peru and northern and central Bolivia (La Paz and western Beni, east to western Santa Cruz).
Inhabits evergreen forest, primarily on lower Andean slopes, but also in adjacent lowlands. Principally montane evergreen forest and cloudforest, but terra firme forest, floodplain-forest and seasonally flooded forest, occasionally wooded swamps, frequented in lowlands; in Bolivia, also semi-deciduous forest in Andean valleys. Seems to prefer interior of mature forest, but also occurs in marginal habitats (mid-successional vegetation, second growth, thickets of Guadua bamboo, or forest edge) at some lowland sites. Apparently most common in upper tropical zone of Andean foothills, where it reaches 1,800 m.
Text account compilers
Rutherford, C.A.
Recommended citation
BirdLife International (2024) Species factsheet: Tschudi's Woodcreeper Xiphorhynchus chunchotambo. Downloaded from
https://datazone.birdlife.org/species/factsheet/tschudis-woodcreeper-xiphorhynchus-chunchotambo on 26/12/2024.
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 26/12/2024.