Taiwan bullfinch explained

The Taiwan bullfinch (Pyrrhula owstoni) is a species of finch in the family Fringillidae. It is endemic to the mountains of Taiwan. It was previously considered a subspecies of the grey-headed bullfinch (P. erythaca) and most authorities consider it as such, but a 2020 study found it to represent a distinct species that diverged from the mainland Asian P. erythaca during the mid-Pleistocene, and the International Ornithological Congress accepted it as such.^{[1] [2] [3]}

Notes and References

1. Web site: Pyrrhula erythaca owstoni (Grey-headed Bullfinch (owstoni)) - Avibase. 2021-01-23. avibase.bsc-eoc.org.
2. Dong. Feng. Li. Shou-Hsien. Chiu. Chi-Cheng. Dong. Lu. Yao. Cheng-Te. Yang. Xiao-Jun. 2020-12-01. Strict allopatric speciation of sky island Pyrrhula erythaca species complex. Molecular Phylogenetics and Evolution. en. 153. 106941. 10.1016/j.ympev.2020.106941. 32818596 . 221220752 . 1055-7903.
3. Web site: Species Updates – IOC World Bird List. 2021-01-23. en-US.