NT
Black-bodied Woodpecker Hylatomus schulzii



Taxonomy

Taxonomic note
Hylatomus schulzii (del Hoyo and Collar 2014) was previously placed in the genus Dryocopus.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2022 Near Threatened A2c+3c+4c
2016 Near Threatened C1+2a(i)
2012 Near Threatened C1+2a(i)
2008 Near Threatened C1; C2a(i)
2004 Near Threatened
2000 Lower Risk/Near Threatened
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency medium
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 776,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - inferred 2016-2027
Rate of change over the past 10 years/3 generations (longer of the two periods) 20-29% - - -
Rate of change over the future 10 years/3 generations (longer of the two periods) 20-29% - - -
Rate of change over the past & future 10 years/3 generations (longer of the two periods) 20-29% - - -
Generation length 3.61 years - - -
Number of subpopulations 2-100 - - -
Percentage of mature individuals in largest subpopulation 1-89% - - -

Population justification: The population size has not been quantified, but the species is described as rare, though possibly under-recorded. Based on the number of observations within its large range (see eBird 2022), it is considered unlikely that the population is small.

Trend justification: The species is reported to have declined over large parts of its range, particularly in Argentina (Winkler and Christie 2020). The main driver of the decline is thought to be the clearance and conversion of woodland (Winkler and Christie 2020).
Within the range, tree cover is lost at a rate of up to 14% over three generations (10.8 years; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). The species' strict dependence on trees, including standing deadwood for nesting, suggests that population declines may be steeper than the rate of tree cover loss alone. Declines are therefore here tentatively placed in the band 20-29% over three generations.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Argentina extant native yes
Bolivia extant native yes
Paraguay extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Bañado La Estrella Este
Argentina Bañado La Estrella Oeste
Argentina Chancaní y Sierras de Pocho
Argentina Cuña boscosa de Santa Fe
Argentina Dorso Occidental Subhúmedo de Santa Fe
Argentina El Cantor
Argentina Estancia Guaycolec
Argentina La Fidelidad
Argentina Nacientes de los riachos Monte Lindo y Tatú Piré
Argentina Parque Nacional Chaco
Argentina Parque Nacional Copo
Argentina Parque Nacional Río Pilcomayo
Argentina Parque Provincial Fuerte Esperanza
Argentina Parque Provincial Pampa del Indio
Argentina Reserva El Bagual
Argentina Reserva Natural Formosa
Argentina Reserva Natural Loro Hablador
Argentina Río Bermejito
Argentina Sierras de Guasayán
Argentina Sierras del Norte Cordobés
Argentina Sistema Uritorco
Argentina Valle del río Paraguay-Paraná
Paraguay Estancia Gran Siete
Paraguay Fortín Toledo
Paraguay Lagunas Saladas - Riacho Yacaré
Paraguay Parque Nacional Médanos del Chaco
Paraguay Pozo Hondo

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Plantations suitable resident
Artificial/Terrestrial Rural Gardens suitable resident
Forest Subtropical/Tropical Dry major resident
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane suitable resident
Savanna Moist major resident
Altitude 15 - 1500 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops - Agro-industry farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Livestock farming & ranching - Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture Wood & pulp plantations - Agro-industry plantations Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2024) Species factsheet: Black-bodied Woodpecker Hylatomus schulzii. Downloaded from https://datazone.birdlife.org/species/factsheet/black-bodied-woodpecker-hylatomus-schulzii 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.