MacGillivray's prion
Pachyptila macgillivrayi (Mathews, 1912)
The macgillivray's prion (Pachyptila macgillivrayi) is a species in the family Procellariidae, order Procellariiformes. Recorded adults weigh about 159 g. Its IUCN Red List status is Critically Endangered.

Quick facts about the macgillivray's prion
- Weight
- 159 gsrc for Weight
- Length
- Not recorded
- Lifespan
- Not recorded
- Diet
- Aquatic predatorsrc for Diet
- Main food
- Not recorded
- Habitat
- marinesrc for Habitat
- Young per litter or clutch
- Not recorded
- Lifestyle
- Aquaticsrc for Lifestyle
- Migration
- Partialsrc for Migration
- Conservation status
- Critically Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the macgillivray's prion live?
Not recorded
What is the macgillivray's prion?
MacGillivray's prion (Pachyptila macgillivrayi) is a species of small petrel (a prion) in the Southern Ocean. It is found on Roche Quille, off Saint Paul Island and on Gough Island in the Tristan da Cunha group, south-central Atlantic Ocean. It was formerly present on Amsterdam Island in the central South Indian Ocean. The population on Saint Paul Island has been increasing since the 1990s eradication of introduced rats and rabbits, but is still likely smaller than the original size.
MacGillivray's prion was formerly considered to be conspecific with Salvin's prion but is now considered to be a separate species based on molecular phylogenetic analysis and a comparison of the bill morphologies that was published in 2022.
MacGillivray's prions moult for longer than other prion species.
Their diet and foraging habits are generally unknown, but they are hypothesized to feed on small zooplankton.
From the Wikipedia article “MacGillivray's prion” (en.wikipedia.org/w/index.php?title=MacGillivray%27s_prion&oldid=1340036214), 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 macgillivray's prion endangered?
The macgillivray's prion is listed as Critically Endangered on the IUCN Red List: it faces an extremely high risk of extinction in the wild.
- 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 Critically Endangered species. What the categories mean.
How is the macgillivray's prion classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderProcellariiformes
- familyProcellariidae
- genusPachyptila
- SpeciesPachyptila macgillivrayi (Mathews, 1912)
Synonyms Pachyptila forsteri macgillivrayi, Pachyptila salvini macgillivrayi, Pachyptila salvini macgillvrayi, Pachyptila vittata macgillivrayi, Prion vittatus macgillivrayi
Other names and names in other languages (18)
- Saint Paul prionEnglish
- Salvin's prion (MacGillivray's)English
- Petrell prió de MacGillivrayCatalan
- buřňák amsterdamskýCzech
- Amsterdam HvalfuglDanish
- MacGillivray-EntensturmvogelGerman
- amsterdama petreletoEsperanto
- Prion de MacGillivrayFrench
- MacGillivrays PrionDutch
- spadenebbhvalfuglNorwegian
- petrelek amsterdamskiPolish
- faigão-da-amesterdãoPortuguese
- faigão-da-amesterdãPortuguese
- faigão-de-macgillivrayPortuguese
- hladinár amsterdamskýSlovak
- amsterdamvalfågelSwedish
- пріон гофськийUkrainian
- 麦氏锯鹱Chinese
Catalogue of LifeWikipediaiNaturalistTAXREFWikidataWoRMSIUCN Red List
Relatives of the macgillivray's prion
Other species in the same genus Pachyptila.

Antarctic prion
Pachyptila desolata

Broad-billed prion
Pachyptila vittata

Slender-billed prion
Pachyptila belcheri

Fairy prion
Pachyptila turtur

Fulmar prion
Pachyptila crassirostris

Salvin's prion
Pachyptila salvini
CompareMacGillivray's prion vs Antarctic prionMacGillivray's prion vs Broad-billed prionMacGillivray's prion vs Slender-billed prionMacGillivray's prion vs Fairy prion
Common questions
Answered only where our data holds the answer.
How big is the macgillivray's prion?
An adult macgillivray's prion weighs 159 g, according to values recorded on Wikidata.
Is the macgillivray's prion endangered?
The macgillivray's prion is listed as Critically Endangered on the IUCN Red List, meaning it faces an extremely high risk of extinction in the wild.
What kind of animal is the macgillivray's prion?
The macgillivray's prion (Pachyptila macgillivrayi) 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.
- 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). MacGillivray's prion (Pachyptila macgillivrayi). Retrieved from https://creaturedata.com/animals/macgillivrays-prion
“MacGillivray's prion (Pachyptila macgillivrayi).” CreatureData, 2026, https://creaturedata.com/animals/macgillivrays-prion.
@misc{macgillivrays_prion_2026,
title = {MacGillivray's prion (Pachyptila macgillivrayi)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/macgillivrays-prion},
note = {Data as of 2026-11-11}
}