LC
Great Shearwater Ardenna gravis



Family: Procellariidae (Petrels, Shearwaters)

Authority: (O'Reilly, 1818)

Red List Category:


Justification of Red List category
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.

Population size: 10000000 mature individuals

Population trend: stable

Extent of occurrence (breeding/resident): 109,000,000 km2

Country endemic: no

Attributes
Realm - Afrotropical
Realm - Nearctic
Realm - Neotropical
Realm - Palearctic
IUCN System - Terrestrial
IUCN System - Marine

Recommended citation
BirdLife International (2025) Species factsheet: Great Shearwater Ardenna gravis. Downloaded from https://datazone.birdlife.org/species/factsheet/great-shearwater-ardenna-gravis on 07/01/2025.
Recommended citation for factsheets for more than one species: BirdLife International (2025) IUCN Red List for birds. Downloaded from https://datazone.birdlife.org/species/search on 07/01/2025.