aerie
noun (North American English)(also eyrie especially in British English)
a nest that is built high up among rocks by a bird of prey (= a bird that kills other creatures for food) such as an eagle （在岩石高处筑的）猛禽巢，鹰巢 a room or building in a high place, especially one that is difficult to reach and from which somebody can see what is happening below （尤指难以接近的）高处的房屋