They circle in the air, heads turning left and right, eyes searching for suitable withered branches. After spotting a likely location, they point the tips of their wings slightly upward, and the tail also follows pointing upward. They gently circle to the ground like a helicopter.
「它們在空中一邊盤旋，頭就左右轉動，眼睛忙著找尋適當的枯枝；看上一個小區域後，就兩翼微微上揚，翼尖上翹，尾羽也跟著上揚，整個身子緩緩如人類的直升機般往下降。」