This is a visualization of data and findings from a study published in 2016 by Kevin Fraser et. al., showing the tracked movements of 14 Purple Martins during the 2014-15 migration season. The data used for protected areas in South America was compiled and made available by UN Environment and IUCN, and the country and state/province boundaries come from Natural Earth.

This map was created in ArcGIS and illustrated in Procreate.