Animalia > Chordata > Aves > Passeriformes > Corvidae > Perisoreus > Perisoreus canadensis

Perisoreus canadensis (Grey Jay; Gray Jay)

Synonyms: Corvus canadensis
Language: French

Wikipedia Abstract

The gray jay (Perisoreus canadensis), also grey jay, Canada jay or whiskey jack, is a member of the crow and jay family (Corvidae) found in the boreal forests across North America north to the tree-line and in subalpine forests of the Rocky Mountains south to New Mexico and Arizona. It is one of three members of the genus Perisoreus, the others being the Siberian jay, P. infaustus, found from Norway to eastern Russia and the Sichuan jay, P. internigrans, restricted to the mountains of eastern Tibet and northwestern Sichuan. All three species store food and live year-round on permanent territories in coniferous forests.
View Wikipedia Record: Perisoreus canadensis

Infraspecies

Perisoreus canadensis albescens
Perisoreus canadensis bicolor
Perisoreus canadensis canadensis
Perisoreus canadensis capitalis
Perisoreus canadensis griseus
Perisoreus canadensis nigricapillus
Perisoreus canadensis obscurus
Perisoreus canadensis pacificus
Perisoreus canadensis sanfordi

EDGE Analysis

Uniqueness Scale: Similiar (0) 
6
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
29
 Unique & Vulnerable (100)
ED Score: 13.4995
EDGE Score: 2.67411
Learn more at EDGE of Existence programme

Attributes

Adult Weight [1]  72 grams
Birth Weight [3]  6 grams
Female Weight [1]  68 grams
Male Weight [1]  76 grams
Weight Dimorphism [1]  11.8 %
Breeding Habitat [2]  Boreal forests
Wintering Geography [2]  Non-migrartory
Wintering Habitat [2]  Boreal forests
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates), Frugivore, Herbivore
Diet - Ectothermic [4]  10 %
Diet - Endothermic [4]  10 %
Diet - Fruit [4]  30 %
Diet - Invertibrates [4]  40 %
Diet - Plants [4]  10 %
Forages - Mid-High [4]  20 %
Forages - Understory [4]  20 %
Forages - Ground [4]  60 %
Clutch Size [5]  4
Clutches / Year [3]  1
Fledging [1]  18 days
Global Population (2017 est.) [2]  26,000,000
Incubation [3]  17 days
Maximum Longevity [3]  19 years
Snout to Vent Length [1]  11 inches (27 cm)
Female Maturity [3]  1 year
Male Maturity [3]  1 year

Ecoregions

Protected Areas

Biodiversity Hotspots

Name Location Endemic Species Website
California Floristic Province Mexico, United States No

Predators

Accipiter cooperii (Cooper's Hawk)[6]
Accipiter gentilis (Northern Goshawk)[6]
Haliaeetus leucocephalus (Bald Eagle)[6]
Strix nebulosa (Great Grey Owl)[6]
Strix varia (Barred Owl)[6]

Consumers

Parasitized by 
Ceratophyllus rauschi[7]
Tarsopsylla octodecimdentata coloradensis[7]

Range Map

External References

NatureServe Explorer

Citations

Attributes / relations provided by
♦ 1Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109
♦ 2Partners in Flight Avian Conservation Assessment Database, version 2017. Accessed on January 2018.
♦ 3de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
♦ 4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
♦ 5Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303
♦ 6Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
♦ 7International Flea Database
Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
Abstract provided by DBpedia licensed under a Creative Commons License
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0