Fig. 3From: Description of the song of the Nilgiri Thrush (Zoothera [aurea] neilgherriensis) and song differentiation across the Zoothera dauma species complexPrincipal component analysis in the Z. dauma complex. a Loadings and percent variance explained by the first two PCs. b Scatter plots for PC 1 and 2. c Scatter plot for change in song frequency and bandwidthBack to article page