Muck, C., Kempenaers, B., Kuhn, S., Valcu, M., & Goymann, W. (2009). Paternity in the classical polyandrous black coucal (Centropus grillii) - A cuckoo accepting cuckoldry? Behavioral Ecology, 20(6), 1185-1193. doi:10.1093/beheco/arp118.