ALT Fig. 1a from the article: (a) Distribution map (shaded in violet) showing sampling localities, subspecies identity and the type of sequence data obtained for each sample. The distribution map is based on BirdLife International and NatureServe (2014).

ALT Fig. 1b from the article: Median-joining haplotype network of concatenated mDNA (COI   cyt b; 1,130 bp). Circles represent haplotypes and their size is proportional to haplotype frequency. The length of the branches connecting haplotypes is proportional to the number of nucleotide differences between them, which are indicated by the number of line marks on each branch.

ALT Fig. 1c from the article: Bayesian phylogenetic tree with divergence times obtained from the analysis of the concatenated mitochondrial dataset (1130 bp). The numbers near the nodes indicate the mean divergence time estimates and the numbers between square brackets correspond to the 95% highest posterior density intervals of those estimates.

ALT Fig. 4 from the article: Analysis of the vocalizations of T. ruficapillus. Song differentiation among subspecies is shown based on a PCA performed with the song variables (mean duration of the note, mean duration of the interval between notes, fundamental frequency, bandwidth of the note and the number of notes in each song; the first four variables were measured for the first note).