Data Zone
Taxonomic note
Aphelocoma californica and A. insularis (AOU [1998 and supplements]; Sibley and Monroe [1990, 1993]) have been lumped into A. califonica following del Hoyo and Collar (2016).
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 |
|---|---|---|
| 2016 | Least Concern |
| Migratory status | not a migrant | Forest dependency | Low |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 4,590,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| No. of mature individuals | 0 | |||
| Population trend | Stable | suspected | - | |
| 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 | - | - | - | |
| Generation length (yrs) | 8.3 | - | - | - |
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Mexico | N | Extant | Yes | |||
| USA | N | Extant | Yes |
| Country/Territory | IBA Name |
|---|---|
| USA | Channel Islands - Northern |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Subtropical/Tropical Mangrove Vegetation Above High Tide Level | suitable | resident |
| Forest | Subtropical/Tropical Moist Montane | suitable | resident |
| Shrubland | Mediterranean-type Shrubby Vegetation | suitable | resident |
| Shrubland | Subtropical/Tropical Dry | major | resident |
| Altitude | 0 - 3000 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2023) Species factsheet: Aphelocoma californica. Downloaded from
http://www.birdlife.org on 31/03/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 31/03/2023.
