Additional file 1: Figure S1. of Two new genera of songbirds represent endemic radiations from the Shola Sky Islands of the Western Ghats, India

Sample collection sites across the sky islands of the Western Ghats. Figure S2. Ancestral area analysis using Lagrange for Montecincla. Area codes for terminal taxa are A-Africa, B-peninsular India, C-Himalayas, D-Southeast Asia, E-China, F-Sundaland, G-Philippines, and H-Assam. The most likely ancestral range reconstruction for relevant nodes (in red) are shown. Figure S3. Ancestral area analysis using Lagrange for Sholicola. Area codes for terminal taxa are I-Peninsular India, H-Himalayas, A-Southeast Asia, D-Eurasia, E-Australasia F- Africa + Southwest Asia, C-China, S-Sundaland, P-Philippines, E-Eurasia, and N-Australasia/New World. The most likely ancestral range reconstruction for relevant nodes (in red) are shown with their relative probabilities. Figure S4. Map showing the species distributions of Montecincla chilappans and Sholicola sholakillis. Figure S5. Photographs of Sholicola ashambuensis sp. nov. a) holotype in the Trivandrum Museum of Natural History; b) in comparison with other members of Sholicola: S. ashambuensis (right), with larger white belly contrasted with S. albiventris (middle), S. major (left). Figure S6. a) Discriminant Function Analysis of morphometric differences between Sholicola ashambuensis and S. albiventris based on 97 individuals shows 79.4% accurate classification and significant differences in the means (non overlapping 95% confidence interval circles); b) Box plots showing morphometric differences in bill and tarsus lengths in Sholicola ashambuensis and S. albiventris. Figure S7. Discriminant Function Analysis of Sholicola ashambuensis and S. albiventris songs based on 217 song recordings shows 80% accurate classification and significant differences in the means (non overlapping 95% confidence interval circles). Table S1: Samples used to reconstruct Montecincla phylogeny. Table S2: Samples used to reconstruct Sholicola phylogeny. Table S3: Morphometric variation in Montecincla species. Table S4: Morphometric variation in Sholicola species. Table S5: Song variation in Montecincla species in the Western Ghats Sky Islands. Table S6: Song variation in Sholicola species in the Western Ghats Sky Islands. Table S7: Comparison of morphometric measurements of Sholicola ashambuensis and S. albiventris. (PDF 3728 kb)