Hawaiian Goose Branta sandvicensis

Family: Anatidae (Ducks, Geese, Swans)

Authority: (Vigors, 1834)

Red List Category

Criteria: B2ab(ii,iii,iv,v); C2a(i)

Click here for more information about the Red List categories and criteria

Justification of Red List category
Although this species's population has grown and continues to increase as a result of extensive conservation actions, it is reliant on ongoing predator control and habitat management measures, without which it would likely quickly decline again. It has a small area of occupancy and occurs at a small number of locations. Its population size remains small and is composed of small subpopulations. In the absence of continued habitat management and/or predator controls, its area of occupancy, area and quality of habitat, and population size would all likely decline. For these reasons, the species is listed as Near Threatened.

Population size: 1700-2200 mature individuals

Population trend: increasing

Extent of occurrence (breeding/resident): 50,700 km2

Country endemic: yes

Land-mass type - oceanic island
Realm - Oceanic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Branta sandvicensis. Downloaded from http://datazone.birdlife.org/species/factsheet/hawaiian-goose-branta-sandvicensis on 05/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 05/12/2023.