Cory's shearwater
Calonectris borealis (Cory, 1881)
The cory's shearwater (Calonectris borealis) is a species in the family Procellariidae, order Procellariiformes. Recorded adults weigh 535 g to 955.6 g and live up to 24.8 years. Its IUCN Red List status is Least Concern.

Quick facts about the cory's shearwater
- Weight
- 535 g – 955.6 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 24.8 yearssrc for Lifespan
- Diet
- Aquatic predatorsrc for Diet
- Main food
- Not recorded
- Habitat
- marinesrc for Habitat
- Egg incubation
- 54 dayssrc for Egg incubation
- Young per litter or clutch
- 1src for Young per litter or clutch
- Age at maturity
- 8.35 yearssrc for Age at maturity
- Litters or clutches a year
- 0.951src for Litters or clutches a year
- Lifestyle
- Generalistsrc for Lifestyle
- Migration
- Migratorysrc for Migration
- Conservation status
- Least Concern (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the cory's shearwater live?
Not recorded
What is the cory's shearwater?
Cory's shearwater (Calonectris borealis) is a large shearwater in the seabird family Procellariidae. It breeds colonially on the archipelago of the Azores in the eastern Atlantic. Outside the breeding season it ranges widely in the Atlantic. It was formerly considered to be conspecific with Scopoli's shearwater.
From the Wikipedia article “Cory's shearwater” (en.wikipedia.org/w/index.php?title=Cory%27s_shearwater&oldid=1383968650), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the cory's shearwater endangered?
The cory's shearwater is listed as Least Concern on the IUCN Red List: it is not currently at risk of extinction.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Least Concern species. What the categories mean.
How is the cory's shearwater classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderProcellariiformes
- familyProcellariidae
- genusCalonectris
- SpeciesCalonectris borealis (Cory, 1881)
Synonyms Calonectes diomedea borealis, Calonectris borealis, Calonectris borealis borealis, Calonectris borealis fortunatus, Calonectris diomedea borealis, Calonectris diomedea borealis, Calonectris diomedea fortunatus, Calonectris kuhli borealis, Puffinus borealis, Puffinus diomedea borealis, Puffinus kuhli fortunatus
Other names and names in other languages (36)
- GeelbekpylstormvoëlAfrikaans
- Tort glasBreton
- baldriga de CoryCatalan
- buřňák atlantskýCzech
- Aderyn drycin CoryWelsh
- Atlantisk SkråpeDanish
- Kuhls SkråpeDanish
- CorysturmtaucherGerman
- Gelbschnabel-SturmtaucherGerman
- flavbeka pufinoEsperanto
- Pardela cenicienta canariaSpanish
- portugali tormilindEstonian
- makaronesianliitäjäFinnish
- KeltanokkaliitäjäFinnish
- Nevgulur skrápurFaroese
- Puffin boréalFrench
- Puffin cendréFrench
- Cánóg ghob-bhuíIrish
- Scraayl CoryScottish Gaelic
- krupnokljuni kaukalCroatian
- Berta maggiore atlanticaItalian
- GulnebblireNorwegian Bokmål
- Kuhls PijlstormvogelDutch
- portugiserlireNorwegian
- Parha di Tormenta CoryPapiamento
- burzyk dużyPolish
- cagarra-grandePortuguese
- cagarra-do-atlânticoPortuguese
- cagarro-dos-açoresPortuguese
- Атлантический буревестникRussian
- Атлантический пёстрый буревестникRussian
- víchrovník žltozobýSlovak
- gulnäbbad liraSwedish
- буревісник атлантичнийUkrainian
- 猛鹱Chinese
- 克氏猛鸌Chinese
Relatives of the cory's shearwater
Other species in the same genus Calonectris.

Scopoli's shearwater
Calonectris diomedea

Streaked shearwater
Calonectris leucomelas

Cape Verde shearwater
Calonectris edwardsii
Wingate's shearwater
Calonectris wingatei
CompareCory's shearwater vs Scopoli's shearwaterCory's shearwater vs Streaked shearwaterCory's shearwater vs Cape Verde shearwaterCory's shearwater vs Wingate's shearwater
Common questions
Answered only where our data holds the answer.
How big is the cory's shearwater?
An adult cory's shearwater weighs 535 g – 955.6 g, according to values recorded on Wikidata.
Is the cory's shearwater endangered?
The cory's shearwater is listed as Least Concern on the IUCN Red List, meaning it is not currently at risk of extinction.
How long does the cory's shearwater live?
The cory's shearwater has a recorded lifespan of 24.8 years.
What kind of animal is the cory's shearwater?
The cory's shearwater (Calonectris borealis) belongs to the family Procellariidae in the order Procellariiformes.
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 - 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). - 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). Cory's shearwater (Calonectris borealis). Retrieved from https://creaturedata.com/animals/corys-shearwater
“Cory's shearwater (Calonectris borealis).” CreatureData, 2026, https://creaturedata.com/animals/corys-shearwater.
@misc{corys_shearwater_2026,
title = {Cory's shearwater (Calonectris borealis)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/corys-shearwater},
note = {Data as of 2026-11-11}
}