Bird of prey "Accipitres", subdividing this into four genera: "Vultur" (vultures), "Falco" (eagles, hawks, falcons, etc.), "Strix" (owls), and "Lanius" (shrikes). This approach was followed by subsequent authors such as Gmelin, Latham, and Turnton. Louis Pierre Veillot used additional ranks: order, tribe, family, genus, species. Birds of prey (order Accipitres) were divided into diurnal and nocturnal tribes; the owls remained monogeneric (family Ægolii, genus "Strix"), whilst the diurnal raptors were divided into three families: Vulturini, Gypaëti, and Accipitrini. Thus Veillot's families were similar to the Linnaean genera, with the difference that shrikes were no longer included amongst the birds of prey. In addition
Novel world method (designed by the researcher) instead of a colour pattern. The prey are also presented on a black-and-white background. Novel world studies are “theoretical experiments” where for example the defence efficacy (bad taste), relative and absolute abundance, visibility or the degree of signal similarity of different prey types is manipulated, and the number of bird attacks on each prey type is recorded. Typical experiments test hypotheses on how predators learn through trial and error to avoid unpalatable prey, which prey traits facilitate avoidance learning and how those could in turn affect mortality of the prey types and therefore the evolution of