Detection of ongoing hybridizaiton using NEWHYBRIDS. Each histogram represents an individual. Field identification of the individuals is labeled at the bottom of each histogram. The posterior probability for each individual to be assigned as pure Aegithalos bonvaloti, pure A. fuliginosus, F1 hybrid, F2 hybrid, backcross with A. bonvaloti (B × B), and backcross with A. fuliginosus (B × F) are labeled in different colors. Asterisks indicate A. bonvaloti individuals with foreign mtDNA haplotype.