e analyzed the song pattern of the black redstart (Phoenicurus ochruros) from the Haibei area and compared it to three other recording sites on the Tibet Plateau using the Avisoft-SAS Lab program. Five extracted functions identified individuals from the Haibei population. By comparing populations from the Tibet Plateau (China), Slovakia (Central Europe), Germany and other sites in Europe, we established that the maximum song frequency was lowest in the Haibei population of the Tibet Plateau. On a large geographic scale, song differences increased with geographic distance. Black redstarts sing lengthy songs composed of two parts in both the Tibet Plateau and in Europe. However, while these two sections were totally or partly identical within the Tibet Plateau population, they were totally different in European populations. Redstart songs in the Tibet Plateau share a syllable of scrunching sound, while European individuals have a homologous section composed of repeat elements.
The paper reported vocalizations of endemic Tibetan Plateau steppe sparrow, red- necked snow finch (Pyrgilauda ruficollis) by using SAS-Lab Pro. The subject similarity contrast and multivariate contrast were used to study the complexity and stability of sounds. The results indicated that songs of P. ruficollis were highly complicated with varied song types, song phrases, song syllable and combination of them. One song syllable shared by snow finches (Montifringilla nivalis henrici, M. adamsi, P. ruficollis and P. blanfordi) was selected as indicator to compare the taxonomic relationship among them. The similarity contrast and cluster analysis through SPSS were conducted to construct the similarity tree based on this shared syllable’s acoustic parameters including the highest frequency (HF), the lowest frequency (LF), the main frequency (MPF) and duration (DUR). The results revealed that the syllable similarities are accordant with taxonomic status suggested in previous studies based on morphologic, ecological and molecular analysis methods. The syllable shared by these snow finches were presumed to be homologous and derived from a common ancestry. Further studies on songs encoding phylogenetic signal of snow finches are needed.