Data Zone
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 |
|---|---|---|
| 2021 | Least Concern | |
| 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 | 21 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 10,800,000 | medium |
| Extent of Occurrence non-breeding (km2) | 3,790,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 5900000 | poor | estimated | 2019 |
| Population trend | increasing | 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) | - | - | - | |
| Number of subpopulations | - | - | - | |
| Percentage in largest subpopulation | - | - | - |
Population justification: The global population is estimated to number 5,900,000 mature individuals (Partners in Flight 2019).
Trend justification: The species has been undergoing a large, significant increase between 1970 and 2017, at an average rate of 1.1% per year (Partners in Flight 2019; Rosenberg et al. 2019). Short-term trends suggest a rate of increase of 8% over the past ten years, though this value is non-significant (Pardieck et al. 2018).
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Canada | extant | native | yes | yes | ||
| Mexico | extant | native | yes | yes | ||
| St Pierre and Miquelon (to France) | extant | vagrant | ||||
| USA | extant | native | yes | yes | yes | yes |
| Country/Territory | IBA Name |
|---|
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Arable Land | suitable | non-breeding |
| Artificial/Terrestrial | Pastureland | suitable | breeding |
| Grassland | Temperate | major | breeding |
| Shrubland | Subtropical/Tropical Dry | suitable | breeding |
| Shrubland | Subtropical/Tropical High Altitude | suitable | breeding |
| Altitude | 0 - 2850 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Sayornis saya. Downloaded from
http://datazone.birdlife.org/species/factsheet/says-phoebe-sayornis-saya on 04/06/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 04/06/2023.
