在哈比人歷險記和魔戒小說中都有提到，北方巨鷹是歷史悠久的種族，是世上最尊貴的生物之一。

所以我想巨鷹的智慧與力量應該不低於人類、矮人甚至精靈，也就是他們也是會受到魔戒誘惑而被控制的...

"There came Gwaihir the Windlord, and Landroval his brother, greatest of all the Eagles of the North,

mightiest of the descendants of old Thorondor, who built his eyries in the inaccessible peaks of

the Encircling Mountains when Middle-earth was young."

（Gwaihir、Landroval、Thorondor等都是大老鷹的名字。）