Recommended citation
BirdLife International (2024) Species factsheet: Swan Goose Anser cygnoid. Downloaded from
https://datazone.birdlife.org/species/factsheet/swan-goose-anser-cygnoid on 23/12/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/12/2024.