Data Zone
Taxonomic note
Leuconotopicus borealis (del Hoyo and Collar 2014) was previously placed in the genus Picoides.
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.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2020 | Near Threatened | C2a(i) |
| 2016 | Near Threatened | C2a(i) |
| 2013 | Near Threatened | C2a(i) |
| 2012 | Vulnerable | C1+2a(i) |
| 2010 | Vulnerable | C1; C2a(i) |
| 2008 | Vulnerable | C1; C2a(i) |
| 2007 | Vulnerable | |
| 2004 | Vulnerable | |
| 2000 | Vulnerable | |
| 1996 | Vulnerable | |
| 1994 | Vulnerable | |
| 1988 | Threatened |
| Migratory status | not a migrant | Forest dependency | High |
| Land mass type |
Land-mass type - continent |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 1,630,000 | medium |
| Number of locations | 30 | - |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 19000 | medium | estimated | 2019 |
| Population trend | Decreasing | medium | estimated | - |
| Decline (3 years/1 generation past) | - | - | - | |
| Decline (5 years/1 generation past) | - | - | - | |
| Decline (10 years/1 generation past) | - | - | - | |
| Decline (10 years/3 generation future) | - | - | - | |
| Decline (10 years/3 generation past and future) | 1-19 | - | - | - |
| Number of subpopulations | 30 | - | - | - |
| Percentage in largest subpopulation | - | - | - |
Population justification: The population is estimated at 19,000 mature individuals (Partners in Flight 2019).
Trend justification: This species underwent a large and statistically significant overall decrease estimated at 81% between 1970 and 2014 (Rosenberg et al. 2016), and James (1995) calculated a 23% decline in the number of clusters between the early 1980s and 1990. More recently, some large areas of Federal land have demonstrated increases in both the number of individuals and of clusters as a result of intensive management (U.S. Fish and Wildlife Service 2008, W. McDearman in litt. 2010). For example, between 1994 and 2002, populations at six military installations increased by as much as 50% (U.S. Fish and Wildlife Service 2008). As a result of conservation action, several population may currently be stable, and could be increasing overall, although some subpopulations are known to still be in decline and losing their viability (W. McDearman in litt. 2010, Sauer et al. 2017, Jackson 2020), even despite intense conservation intervention (D. Wood in litt. 2020). It has been hypothesised that there may be a time-lag between reintroduction and translocation events and the actual population growth due to the fact that groups will be small at first, but increase their reproductive rate with time (D. Wood in litt. 2020). Until the situation is clarified, an on-going slow decline is precautionarily suspected, on the basis that further cluster losses may be occurring in some subpopulations.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| USA | N | Extant | Yes |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Temperate | major | resident |
| Altitude | 0 - 500 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Past, Likely to Return | Majority (50-90%) | Rapid Declines | Past Impact | ||||||
|
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| Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
| Past, Likely to Return | Whole (>90%) | Rapid Declines | Past Impact | ||||||
|
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| Climate change & severe weather | Storms & flooding | Timing | Scope | Severity | Impact | ||||
| Past, Likely to Return | Whole (>90%) | Unknown | Past Impact | ||||||
|
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| Human intrusions & disturbance | Work & other activities | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Unknown | Unknown | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Dendroctonus frontalis | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Glaucomys volans | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Invasive and other problematic species, genes & diseases | Problematic native species/diseases - Hylatomus pileatus | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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| Natural system modifications | Fire & fire suppression - Supression in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
| Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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| Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
|---|---|---|---|---|---|---|
| Pets/display animals, horticulture | - | - | International | Non-trivial | Recent |
Recommended citation
BirdLife International (2021) Species factsheet: Leuconotopicus borealis. Downloaded from
http://www.birdlife.org on 27/11/2021.
Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 27/11/2021.
