老鹰都把窝巢筑在“树梢”或是“悬崖陡壁”上,生态学家们用望远镜仔细观察后发现,母鹰先衔一些“荆棘”放在底层,再叼来些尖锐的“小石子”铺放在“荆棘”上面。后来又衔了些枯草、羽毛或兽皮盖在小石子上,做成一个孵蛋的窝。 The eagles built their nests on the “treetops” or “steep cliffs,” and ecologists carefully observed them with telescopes and found that the males preempt some “thorns” on the ground and then Some sharp “pebbles” are placed on the “thorns” above. Later, a number of haystacked, feathers or animal skins covered in pebbles, made of a hatchery nest.