Data Zone
Taxonomic note
Junco phaeonotus and J. bairdi (del Hoyo and Collar 2016) were previously lumped as J. phaeonotus following AOU (1998 & supplements); Sibley and Monroe (1990, 1993); Stotz et al. (1996).
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2020 | Near Threatened | C2a(ii) |
| 2016 | Near Threatened | C2a(ii) |
| 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 | medium |
| Land-mass type | Average mass | 20 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 5,200 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 2500-9999 mature individuals | poor | suspected | 2016 |
| Population trend | unknown | - | - | - |
| Generation length | 1.99 years | - | - | - |
| Number of subpopulations | 1 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: Assuming that not all of the species’s range is occupied and using density estimates for congeners the population size may fall within the range of 2,500-9,999 mature individuals.
Trend justification: The population trend is unknown.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Mexico | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Mexico | Sierra de La Laguna |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Grassland | Subtropical/Tropical High Altitude | suitable | resident |
| Shrubland | Subtropical/Tropical High Altitude | suitable | resident |
| Altitude | 1200 - 4300 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Scale Unknown/Unrecorded | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Unknown | Unknown | ||||||
|
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| Residential & commercial development | Tourism & recreation areas | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Unknown | Unknown | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Baird's Junco Junco bairdi. Downloaded from
https://datazone.birdlife.org/species/factsheet/bairds-junco-junco-bairdi 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.