Tyler, Stephanie J. (2004): 60. Yellow Wagtail. In: del Hoyo, Josep; Elliott, Andrew & Christie, D. (eds.): Handbook of Birds of the World (Vol. 9: Cotingas to Pipits and Wagtails): 781-782, plate 77. Lynx Edicions, Barcelona.ISBN 84-87334-69-5. Plate 77 image[liên kết hỏng] (all birds except the 4 grey/black-backed ones at lower left are M. flava)
Voelker, Gary (2002): Systematics and historical biogeography of wagtails: Dispersal versus vicariance revisited. Condor104(4): 725–739. [English with Spanish abstract] DOI: 10.1650/0010-5422(2002)104[0725:SAHBOW]2.0.CO;2 HTML abstract
