Figure 2. Evolutionary and demographic history in six Ethiopian montane birds. (A) Inference of genetic structure using the program STRUCTURE for each species. Each column indicates one individual and the proportion of each color the probability of assignment to one of two genetic clusters. Individuals sampled to the west or east of the Great Rift Valley (GRV) are indicated on the left and right of the dotted line, respectively. (B) Species tree topologies for each species estimated in ASTRAL. (C) ND2 mitochondrial DNA haplotype networks. (D) Estimates of demographic history for each individual estimated with MSMC. Complete results including bootstraps are presented in Fig. S4. Different individuals are represented with differently colored lines for increased clarity. Plots are separated for individuals west (left) and east (right) of the GRV. General elevational affinities shown for each species in the bottom corner of photos. All photos by JDM.