Bikram Grewal, Bill Harvey, Otto Pfister: A photographic guide to the birds of India, s. 369. Princeton University Press, 2003. ISBN 978-0-691-11496-5. Kirja Googlen teoshaussa (viitattu 5.8.2010). (englanniksi)
iucnredlist.org
BirdLife International: Pomatorhinus ruficollisIUCN Red List of Threatened Species. Version 2013.2. 2013. International Union for Conservation of Nature, IUCN, Iucnredlist.org. Viitattu 23.2.2014. (englanniksi)