“…However, the insect vectors of these avian parasites exhibit relatively opportunistic behaviour by feeding on the blood of different bird species, which could lead to host switching. Indeed, host shifts are frequent, rapid processes that have shaped the evolutionary history of avian haemosporidians (Alcala, Jenkins, Christe, & Vuilleumier, ; Ricklefs et al, ). Bird‐parasite interactions have been intensively studied in order to identify specificity among avian haemosporidians and different hosts (Clark, Clegg, & Lima, ; Križanauskienė et al, ; Palinauskas, Valkiūnas, Bolshakov, & Bensch, ; Valkiūnas, ); however, very little attention has been paid to the occurrence of vector shifts, and, in general, to the role of vector feeding behaviour in facilitating or inhibiting host shifts (Gager et al, ; Ishtiaq et al, ; Kim & Tsuda, ).…”