The role of learned song in the evolution and speciation of Eastern and Spotted towhees
Fig 5
UMAP projection of Eastern and Spotted towhee song-feature data.
Each point represents an analyzed song bout (Ntotal_bouts = 2785; NSpotted_towhee = 1067; NEastern_towhee = 1718), with Eastern towhee songs shown in shades of red and Spotted towhee songs in shades of blue. The lighter colors represent recordings from the zone of species overlap. Black dots indicate the 27 recordings from individuals that were classified as potential hybrids (“hybrid/unsure”).