Range map of Grass wren
BirdLife International 2016. Cistothorus platensis. The IUCN Red List of Threatened Species 2016: e.T103886997A94290566. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T103886997A94290566.en. Downloaded on 30 March 2019.
Cephas