Figure 5 from: Marcondes RS, Silveira LF (2015) A taxonomic review of Aramides cajaneus (Aves, Gruiformes, Rallidae) with notes on morphological variation in other species of the genus. ZooKeys 500: 111-140. https://doi.org/10.3897/zookeys.500.7685

Figure 5 - Distribution of the analyzed song recordings of the South American (blue), and Central American (green) components of the Aramides cajaneus species complex. Their songs are strikingly different; see text for details.