Geographical distribution of Rock sandpiper.    Breeding  Year-round  Nonbreeding
BirdLife International. 2016. Calidris ptilocnemis. The IUCN Red List of Threatened Species 2016: e.T22693424A95218793. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22693424A95218793.en. Downloaded on 16 June 2018.
Cephas