The visible similarity between cuckoos and sparrowhawks was already clear, but this is the first study to show the effect the trickery has on host birds.
人类早已辨认得出杜鹃与食雀鹰,不过这是首次研究杜鹃的把戏对其宿主的影响。
2
Eagle is a typical representative of the birds of prey with various species. In China the most common are goshawks, sparrowhawks and red-bellied eagles.