Figure 1
From: Number of syllables in cuckoo Cuculus canorus calls: A test using a citizen science project
Geographical distribution of the number of syllables in male cuckoo calls obtained from the Xeno-canto website. The map was produced with GIS soſtware (ArcGIS 10.1)58 with free geographic background data. The geographical distribution of cuckoo Cuculus canorus calls was mapped using freely available data from http://www.xeno-canto.org.
