By Joseph Smit - Proceedings of the Zoological Society of London 1882: plate XVIII, Public Domain, https://commons.wikimedia.org/w/index.php?curid=15053684
Koester
Sources:
(*) https://en.wikipedia.org/wiki/Yellow-breasted_pipit
(*) https://ebird.org/species/yebpip2
(*) https://search.macaulaylibrary.org/catalog?taxonCode=yebpip2