0003-3472 2013 The Association for the Study of A http://dx.doi.org/10.1016/j.anbehav.2013.01.005 With their landmark publication ‘Cuckoos versus reed warblers: adaptations and counteradaptations’ (Animal Behaviour, 1988, 36, 262-284), Davies & Brooke ushered in a new era of research on avian brood parasitism. Building on centuries of rich natural history and detailed observation of common cuck...