Figure 3 in Genetic, bioacoustic and morphological analyses reveal cryptic speciation in the warbling vireo complex (Vireo gilvus: Vireonidae: Passeriformes)

Figure 3. Thirty-seven warbling vireo populations genotyped at 14 microsatellite loci. Colours correspond to the four genetic groups from STRUCTURE: eastern (red), north-western (green), south-western (blue) and the Black Hills (orange) (see Fig. 2). The eastern (Medicine Hat, M HAT; left circle) and north-western (Cypress Hills, C HILLS; right circle) groups from the SEAB population are shown separately. Refer to Table 1 for population abbreviations and sample sizes.