Data Zone
Taxonomic note
Passerculus bairdii (del Hoyo and Collar 2016) was previously placed in the genus Ammodramus following AOU (1998 & supplements); Sibley & 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 |
|---|---|---|
| 2019 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | full migrant | Forest dependency | does not normally occur in forest |
| Land-mass type | Average mass | 18 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 873,000 km2 | medium |
| Extent of Occurrence (non-breeding) | 472,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | 3200000 mature individuals | poor | estimated | 2016 |
| Population trend | stable | - | suspected | - |
| Generation length | 3.9 years | - | - | - |
Population justification: Partners in Flight estimate the global population to number 3.2 million mature individuals (A. Panjabi in litt. 2017).
Trend justification: This species has undergone a large and statistically significant decline over the last 50 years in North America (65.9% decline between 1966 and 2015 based on the North American Breeding Bird Survey [Sauer et al. 2017], 71% decline between 1970 and 2014 based on Partners in Flight [A. Panjabi in litt. 2017]). However recently, overall numbers appear to be stabilising because habitat management has resulted in population increases in Saskatchewan (Jones et al. 1998, COSEWIC 1999, Sauer et al. 2017).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Canada | extant | native | yes | |||
| Mexico | extant | native | yes | |||
| USA | extant | native | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | non-breeding |
| Grassland | Temperate | major | breeding |
| Altitude | 1200 - 2000 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Baird's Sparrow Passerculus bairdii. Downloaded from
https://datazone.birdlife.org/species/factsheet/bairds-sparrow-passerculus-bairdii on 27/11/2024.
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 27/11/2024.