Seong, Jin-Woo, Jong-Gil Park, and Dong-Ha Nam. “Revisiting Subspecies Identification of Common Kestrels (Falco tinnunculus): A Critical Look at Zhang et al. (2008)”. Zootaxa 5659, no. 4 (July 7, 2025): 536–546. Accessed July 8, 2025. https://www.mapress.com/zt/article/view/zootaxa.5659.4.4.