FIGURE 2 in Taxonomic revision of Saffron-billed Sparrow Arremon flavirostris Swainson, 1838 (Aves: Passerellidae) with comments on its holotype and type locality

FIGURE 2. Distribution of specimens of the three plumage groups in the multivariate space based on first two PCs. Wing and tail length were the measurements most correlated with PC1 and PC2. No clear segregation between groups was found, with a homogeneous distribution of specimens. Black circles represent A. f. dorbignii, black crosses A. f. flavirostris and white triangles A. f. polionotus. The ellipse represents the confidence interval (95%).