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Blue Jay

Cyanocitta cristata

Abstract

Blue Jay Cyanocitta cristata has most recently been assessed for The IUCN Red List of Threatened Species in 2016. Cyanocitta cristata is listed as Least Concern.


The Red list Assessmenti

Last assessed

01 October 2016

Scope of assessment

Global

Population trend

Stable

Number of mature individuals

Habitat and ecology

Forest, Artificial/Terrestrial

Geographic range

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  • Extant (resident)

  • Extant (breeding)

  • Extant (non-breeding)

BirdLife International and Handbook of the Birds of the World (2016) 2006. Cyanocitta cristata. The IUCN Red List of Threatened Species. Version 2022-1

Taxonomy

Kingdom

Animalia

Phylum

Chordata

Class

Aves

Scientific name

Cyanocitta cristata

Authority

(Linnaeus, 1758)

Synonyms

Common names

English

Blue Jay

Taxonomic sources

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.

Identification Information

Taxonomic notes

Assessment Information

IUCN Red List Category and Criteria

Least Concern 

Date assessed

01 October 2016

Year published

2016

Year last seen

Regional assessments

    Assessor(s)

    BirdLife International

    Reviewer(s)

    Butchart, S. & Symes, A.

    Contributor(s)

    Facilitator(s) / Compiler(s)

    Ekstrom, J. & Butchart, S.

    Partner(s) / Institution(s)

    Authority / Authorities

    Justification

    This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is extremely large, and hence does not approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

    Geographic Range

    Native

    Extant (breeding)

    United States

    Extant (passage)

    Canada

    Extant (seasonality uncertain)

    Mexico

    Extant (resident)

    Saint Pierre and Miquelon

    Number of locations

    Upper elevation limit

    Lower elevation limit

    Estimated area of occupancy (AOO) (km²)

    Continuing decline in area of occupancy (AOO)

    Unknown

    Extreme fluctuations in area of occupancy (AOO)

    No

    Estimated extent of occurrence (EOO) (km²)

    9520000

    Continuing decline in extent of occurrence (EOO)

    Unknown

    Extreme fluctuations in extent of occurrence (EOO)

    No

    Continuing decline in number of locations

    Unknown

    Extreme fluctuations in the number of locations

    No

    Range Description


    Population

    Current population trend

    Stable

    Number of mature individuals

    Population severely fragmented

    No

    Continuing decline of mature individuals

    Unknown

    Extreme fluctuations

    No

    No. of subpopulations

    Continuing decline in subpopulations

    Unknown

    Extreme fluctuations in subpopulations

    No

    All individuals in one subpopulation

    No

    No. of individuals in largest subpopulation

    Description


    Trend Justification: This species has had stable population trends over the last 40 years in North America (data from Breeding Bird Survey and/or Christmas Bird Count: Butcher and Niven 2007).

    Habitat and Ecology

    Generation length (years)

    6.8 years

    Congregatory

    Movement patterns

    Full Migrant

    Continuing decline in area, extent and/or quality of habitat

    Unknown

    Habitat and Ecology


    Classification scheme

    HabitatsSuitabilityMajor importance
    1. Forest1.1. Forest - BorealSuitableNo
    1.4. Forest - TemperateSuitableYes
    1.5. Forest - Subtropical/Tropical DrySuitableYes
    1.6. Forest - Subtropical/Tropical Moist LowlandSuitableNo
    14. Artificial/Terrestrial14.4. Artificial/Terrestrial - Rural GardensSuitableNo
    14.5. Artificial/Terrestrial - Urban AreasSuitableNo

    Threats

    Threats

    Classification scheme

    ThreatsTimingStressesScopeSeverityImpact scoreInvasive speciesVirus

    Conservation Actions

    In-place research and monitoring

    • Action Recovery Plan : No
    • Systematic monitoring scheme : Yes

    In-place land/water protection

    • Conservation sites identified : Yes, over entire range
    • Occurs in at least one protected area : No
    • Invasive species control or prevention : No

    In-place species management

    • Successfully reintroduced or introduced benignly : No
    • Subject to ex-situ conservation : No

    In-place education

    • Subject to recent education and awareness programmes : No
    • Included in international legislation : No
    • Subject to any international management / trade controls : No

    Conservation Actions

    Conservation actions classification scheme

    Conservation Actions NeededNotes

    Research classification scheme

    Research NeededNotes

    Bibliography

    IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: www.iucnredlist.org. (Accessed: 07 December 2016).

    Rich, T.D., Beardmore, C.J., Berlanga, H., Blancher, P.J., Bradstreet, M.S.W., Butcher, G.S., Demarest, D.W., Dunn, E.H., Hunter, W.C., Inigo-Elias, E.E., Martell, A.M., Panjabi, A.O., Pashley, D.N., Rosenberg, K.V., Rustay, C.M., Wendt, J.S. and Will, T.C. 2004. Partners in flight: North American landbird conservation plan. Cornell Lab of Ornithology, Ithaca, NY.

    External Data

    CITES Legislation from Species+

    Data Source

    The information below is from the Species+ website.

    Studies and Actions from Conservation Evidence

    Data Source

    The information below is from the Conservation Evidence website.

    Search terms: "Cyanocitta cristata", "Corvidae"

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