The Iliad 12.211–229

yet now will I speak even as seemeth to me to be best. Let us not go forward to fight with the Danaans for the ships. For thus, methinks, will the issue be, seeing that in sooth this bird has come upon the Trojans, as they were eager to cross over, an eagle of lofty flight, skirting the host on the left, bearing in his talons a blood-red, monstrous snake, still living, yet straightway let it fall before he reached his own nest, neither finished he his course, to bring and give it to his little ones—even so shall we, though we break the gates and the wall of the Achaeans by our great might, and the Achaeans give way, come back over the selfsame road from the ships in disarray; for many of the Trojans shall we leave behind, whom th Achaeans shall slay with the bronze in defense of the ships. On this wise would a soothsayer interpret, one that in his mind had clear knowledge of omens, and to whom the folk gave ear.