LC
Black-necked Woodpecker Colaptes atricollis



Justification

Justification of Red List category
This species has a very large range, and hence does not 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). 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 (>30% decline over ten years or three generations). The population size has not been quantified, 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 size has not been quantified, but this species is described as uncommon or local, though rather inconspicuous (Stotz et al. 1996, Winkler et al. 2020). Nevertheless, based on the high number of records within their large range (see eBird 2023), the population is unlikely to be small.

Trend justification
The population trend has not been investigated. Locally the species is likely affected by the die-back of Algarrobo Prosopis pallida trees (Baena et al. 2017, O. Whaley in litt. 2019, Whaley et al. 2020) and therefore declines are suspected. The rate of decline is unknown, but given the species' large range and tolerance of a variety of habitat any reduction is likely slow.

Distribution and population

The species is endemic to Peru, where it occurs on the western slopes of the Andes.

Ecology

The species inhabits arid forest, scrub and woodland, and is also found in plantations and gardens (Winkler et al. 2020).

Threats

Habitat loss through expansion of large-scale agricultural cultivation and logging is a potential threat. The population in northern Peru has likely been affected by the die-back of Algarrobo Prosopis pallida trees caused by droughts and the spread of gall midges (Baena et al. 2017, O. Whaley in litt. 2019, Whaley et al. 2020). Given the species' large range and tolerance of a variety of habitat however, any reduction is likely slow.

Acknowledgements

Text account compilers
Hermes, C.

Contributors
Butchart, S., Ekstrom, J. & Whaley, O.


Recommended citation
BirdLife International (2024) Species factsheet: Black-necked Woodpecker Colaptes atricollis. Downloaded from https://datazone.birdlife.org/species/factsheet/black-necked-woodpecker-colaptes-atricollis 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.