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

Taxonomic note
Waved Woodpecker Celeus undatus and Scaly-breasted Woodpecker C. grammicus have been lumped as Waved Woodpecker C. undatus, following the finding that there was no genetic or morphological differences between representatives of the two (Sampaio et al. 2018), and the previous observation that the calls were extremely similar (Benz and Robbins 2011).

Taxonomic source(s)
Handbook of the Birds of the World and BirdLife International. 2019. Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world. Version 4. Available at: https://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v4_Dec19.zip.
Sampaio, L., Aleixo, A., Schneider, H., Sampaio, I., Araripe, J., & Rêgo, P. S. D. 2018. Molecular and plumage analyses indicate the incomplete separation of two woodpeckers (Aves, Picidae). Zoologica Scripta 47(4): 418-427.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2019	Least Concern
2016	Not Recognised
2012	Not Recognised
2008	Not Recognised
2004	Not Recognised
2000	Not Recognised
1994	Not Recognised
1988	Not Recognised

Migratory status	not a migrant	Forest dependency	high
Land-mass type		Average mass	64 g

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	6,950,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	2012-2027
Rate of change over the future 10 years/3 generations (longer of the two periods)	10-25%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	10-25%	-	-	-
Generation length	5 years	-	-	-

Population justification: The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996). Poorly known and unobtrusive, this species also occurs in areas difficult to census (Winkler and Christie 2019).

Trend justification: Prior to the two species being lumped, those subspecies grouped under C. undatus were projected to lose 24.1-27.6%, and those under C. grammicus were projected to to lose 15.8-18.4% of suitable habitat within its distribution over three generations (15 years) based on a model of Amazonian deforestation (Soares-Filho et al. 2006, Bird et al. 2011). It was noted that the former group were relatively tolerant of habitat degradation hence was considered likely to decline by less than 25% over three generations. In combining the two former species the estimated rate from the previous models is overall lower than 25%, but there is a need to update the underlying data. For the present assessment the suspected current and future decline for Waved Woodpecker is <25% over three generations.

Country/Territory	Presence	Origin	Resident	Breeding visitor	Non-breeding visitor	Passage migrant
Bolivia	extant	native	yes
Brazil	extant	native	yes
Colombia	extant	native	yes
Ecuador	extant	native	yes
French Guiana	extant	native	yes
Guyana	extant	native	yes
Peru	extant	native	yes
Suriname	extant	native	yes
Venezuela	extant	native	yes

Country/Territory	IBA Name

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Savanna	Dry	suitable	resident
Wetlands (inland)	Permanent Rivers/Streams/Creeks (includes waterfalls)	suitable	resident
Altitude	100 - 900 m	Occasional altitudinal limits	500 - 1140 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Agro-industry grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Livestock farming & ranching - Small-holder grazing, ranching or farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Species disturbance, Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Waved Woodpecker Celeus undatus. Downloaded from https://datazone.birdlife.org/species/factsheet/waved-woodpecker-celeus-undatus on 22/11/2024.
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 22/11/2024.