Range map of Pink-footed goose
  Breeding
  Nonbreeding
BirdLife International 2016. Anser brachyrhynchus. The IUCN Red List of Threatened Species 2016: e.T22679872A85978254. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22679872A85978254.en. Downloaded on 25 December 2018.
Cephas