Doniol-Valcroze, Paul, Paul Coiffard, Per Alström, Magnus Robb, Paul Dufour, and Pierre-André Crochet. 2023. “Molecular and Acoustic Evidence Support the Species Status of Anthus Rubescens rubescens and Anthus [rubescens] japonicus (Passeriformes: Motacillidae)”. Zootaxa 5343 (2). Auckland, New Zealand:173-92. https://doi.org/10.11646/zootaxa.5343.2.4.