Mountain jay
Cyanocitta stelleri (J. F. Gmelin, 1788)
Status not recordedsongbirds
The mountain jay (Cyanocitta stelleri) is a species in the family Corvidae, order Passeriformes. Recorded adults weigh 92 g to 128 g and live up to 16.1 years.
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Quick facts about the mountain jay
- Weight
- 92 g – 128 g
- Length
- Not recorded
- Lifespan
- 16.1 years
- Diet
- Omnivore
- Main food
- Not recorded
- Habitat
- forest
- Egg incubation
- 16 days
- Young per litter or clutch
- 4
- Age at maturity
- 12 months
- Litters or clutches a year
- 1.25
- Lifestyle
- Perching
- Migration
- Sedentary
- Conservation status
- Not recorded
- Countries on record
- Not recorded
Where does the mountain jay live?
Not recorded
Is the mountain jay endangered?
No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.
How is the mountain jay classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPasseriformes
- familyCorvidae
- genusCyanocitta
- SpeciesCyanocitta stelleri (J. F. Gmelin, 1788)
Synonyms Corvus stellari, Corvus stelleri
Other names and names in other languages (53)
- Stellar's jayEnglish
- Stellars jayEnglish
- Steller's jayEnglish
- قيق جبليArabic
- Стелерова синя сойкаBulgarian
- Kegin StellerBreton
- gaig de StellerCatalan
- sojka StellerovaCzech
- sgrech StellerWelsh
- FyrreskadeDanish
- DiademhäherGerman
- diadema garoloEsperanto
- Chara CopetonaSpanish
- tutt-sininäärEstonian
- استلرز جیPersian
- samettinärhiFinnish
- Geai de StellerFrench
- crnoglava šojkaCroatian
- bóbitás szajkóHungarian
- Ghiandaia di StellerItalian
- ステラーカケスJapanese
- Stelerio mėlynasis kėkštasLithuanian
- skaykaylut
- Stellera sīlisLatvian
- Dilzhę́ʼiiNavajo
- Stellers GaaiDutch
- furuskrikeNorwegian
- modrosójka czarnogłowaPolish
- gaio-de-mitraPortuguese
- Стеллерова сойкаRussian
- kapuciarka diadémováSlovak
- Štelerova krejaSerbian
- granskrikaSwedish
- Steller KargasıTurkish
- сизойка чорноголоваUkrainian
- Giẻ cùi StellerVietnamese
- 暗冠蓝鸦Chinese
- قيق الصنوبرArabic
- قيق ستيلرArabic
- قيق متوج طويلArabic
- Stelera garoloEsperanto
- Arrendajo crestadoSpanish
- Chara crestadaSpanish
- Chara de StellerSpanish
- Urraca crestadaSpanish
- Geai-bleu de StellerFrench
- gaio-de-stellerPortuguese
- Стеллерова черноголовая голубая сойкаRussian
- StellerskrikaSwedish
- Steller alakargasıTurkish
- Steller'in KargasıTurkish
- Блакитна сойка чубатаUkrainian
- 暗冠藍鴉Chinese
Relatives of the mountain jay
Other species in the same genus Cyanocitta.

Blue jay
Cyanocitta cristata
CompareMountain jay vs Blue jay
Common questions
Answered only where our data holds the answer.
How big is the mountain jay?
An adult mountain jay weighs 92 g – 128 g, according to values recorded on Wikidata.
How long does the mountain jay live?
The mountain jay has a recorded lifespan of 16.1 years.
What kind of animal is the mountain jay?
The mountain jay (Cyanocitta stelleri) belongs to the family Corvidae in the order Passeriformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AmphiBIO, a global database for amphibian ecological traits · CC BY 4.0 · v1
Oliveira, B.F., São-Pedro, V.A., Santos-Barrera, G., Penone, C. & Costa, G.C. (2017) AmphiBIO, a global database for amphibian ecological traits. Scientific Data 4: 170123. https://doi.org/10.1038/sdata.2017.123. Data: https://doi.org/10.6084/m9.figshare.4644424.v5 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
Wilman, H., Belmaker, J., Simpson, J., de la Rosa, C., Rivadeneira, M.M. & Jetz, W. (2014) EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95: 2027. https://doi.org/10.1890/13-1917.1. Data: https://doi.org/10.6084/m9.figshare.3559887.v1 - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Mountain jay (Cyanocitta stelleri). Retrieved from https://creaturedata.com/animals/mountain-jay
“Mountain jay (Cyanocitta stelleri).” CreatureData, 2026, https://creaturedata.com/animals/mountain-jay.
@misc{mountain_jay_2026,
title = {Mountain jay (Cyanocitta stelleri)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/mountain-jay},
note = {Data as of 2026-11-11}
}