The flight of birds was watched and upon this rested often the movements of whole armies. As the seer had foretold for nine years the Greeks had been fighting before the walls of Troy; their ships were drawn up on the shore of the sea and before them they had built a wall and dug a ditch for protection. The nine years had passed, the tenth year was already going by and never had the people from the beleaguered city dared to approach their ships. But now, after so many years, all was changed. The great hero of the Greeks, the great swift-footed Achilles, was angry and refused to fight for them and sat apart at the stern of his ship on the shore of the barren sea wearing out his heart with anger. Now the Trojans, never before so successful, had reached the wall and were encamped there for the night. The Greeks felt that it was necessary to send out spies to observe the movements of their foes. Diomede volunteered his services and chose Odysseus for his comrade. They crept away from their companions in the darkness but had gone only a few steps when the cry of a Heron was heard on their right. This meant good luck for them, for they knew that Athene, the protecting goddess of Odysseus, had sent this favoring sign, and it proved true, for their sally was prospered and they returned unharmed, having slain thirteen of the enemy, and bringing as booty a noble pair of steeds, a prize in which all Greeks took delight. Even in Homer we see the dawning of skepticism, a skepticism of which we approve and the sentiment of which we cannot but admire. The next day after the favorable sign of Athene to her favorite, after nine long years of terrible war the Trojans stand at the very edge of the ditch before the Greek ships. Hector their noble leader, a hero who may well inspire modern men to noble deeds of patriotism, stands at their head. One rush more, one impetuous dash through the ditch and against the wall, and the ten years' war may be ended with the weary Trojans victors. But at this critical moment a bird appears, it is the favorite bird in Homer and also the favorite bird with us, for it is our national bird, the Eagle. Homer calls it the bird that is surest to bring fulfillment with its omens and tells us that it belonged to mighty Zeus the thunderer, the ruler of gods and men. The bird appeared flying at the left. The people halted. A bird flying at the left meant disapproval. It held in its mouth a snake not yet dead, which, coiling its head, bit at the breast of the bird. The bite was effective, and with a sharp cry, the bird dropped the serpent at the feet of the awe-inspired Trojans and fled shrieking away. Well might the people halt. What was to be done, an onward move against such a portent, or a calm withdrawal when everything was in their favor? One of the common people declared that they must withdraw or death would come upon them. Then noble Hector with frowning brows answered him: "Polydamas, no longer do you speak words pleasing to me.