Geographical distribution of Surfbird.   Breeding  Nonbreeding
BirdLife International. 2016. Calidris virgata. The IUCN Red List of Threatened Species 2016: e.T22693356A93398351. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22693356A93398351.en. Downloaded on 17 June 2018.
Cephas