PUTMAN, R., DUNN, N. et al. (2020) – Zootier Lexikon
https://www.zootier-lexikon.org/bibliographie/p-1699975706/putman-r-dunn-n-zhang-e-chen-m-miquel-c-savolainen-v-2020native range on the IUCN Red List, and populations in Korea and mainland China have