Host defences against cuckoo parasitism and cuckoo trickeries to overcome them are a classic example of antagonistic coevolution.
Manuel Soler, Liesbeth de Neve, María Roldán, Tomás Pérez-Contreras, Juan José Soler 2017, 'Great spotted cuckoo nestlings have no antipredatory effect on magpie or carrion crowhost nests in southern Spain.', PLoS ONEhttp://europepmc.org/articles/PMC5396876?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)