Job 39:30 - Matthew Poole's English Annotations on the Holy Bible

Blood; either of the prey which the eagle hath brought to her nest for them, or of that which themselves catch and kill, being betimes inured to this work by their dams. Naturalists note of the eagle, that she drinketh no water, but blood only. Where the slain are; where any dead carcasses are, yea, or are like to be; for natural historians write of the eagles, that they can presage or smell a battle some days before it be fought. And although some writers affirm that there are divers eagles who do not feed upon carcasses, and will not meddle with them, yet that many eagles do feed on them is sufficiently evident, by the testimony both of Scripture, as Matthew 24:28, and of divers both ancient and later writers. There is she, to wit, in an instant, flying thither with admirable celerity.