Far in the famed land of Arcadia is a beautiful lake known so many years ago, as in the time of Hercules, and even by us in our day, as Lake Stymphalus. It is a lake of pure sweet water and it lies, as such waters lie in our own country, high up in mountains and amid hillsides covered with firs and poplars and clinging vines and wild blossoms.
In our day the lake is a resort for gentle singing birds, but in the time of Hercules other birds were there also. The other birds were water fowls, and they had gathered at Lake Stymphalus because they had been driven out of their old home by wolves, who alone were hungrier and more destructive than they. These fowls had claws of iron, and every feather of theirs was sharper than a barbed arrow, and so strong and fierce and ravenous they were that they would dart from the air and attack hunters, yea, and pecking them down would tear and strip their flesh till but a bony skeleton remained of that which a few minutes before had been a strong, active, buoyant man seeking in the chase food for his hearthside.
To make way with this horrid tribe of the air was the sixth command Eurystheus laid upon Hercules. Toward Lake Stymphalus therefore turned our hero. Again he walked Arcadian waysides, and again as he fared the spring sun shone above, and the birds sang welcome, and the narcissus lifted its golden cup, and as he went his heart rejoiced in his life, whatever the difficulty of his labour, and in the beauty of the world before his eyes. And as he walked also he thought of how he should accomplish the great undertaking upon which he was bent.
While thus deliberating the grey-eyed goddess of wisdom, Athene, came to him—just as this goddess even in our day comes to those who think—and she suggested to his mind that he should scare the fowl from their retreat by brazen rattles. The goddess did even more than put the notion of using a rattle in the mind of Hercules. It is said she actually brought him one, a huge, bronze clapper made for him by the forger of the gods, limping Hephaestus.
Hercules took this rattle and mounting a neighbouring height shook it in his great hands till every hill echoed and the very trees quivered with the horrid sound. And the man-eating birds? Not one remained hidden. Each and every one rose terrified in the air, croaking and working its steely talons and sharp-pointed feathers in dire fear.
Now from his quiver the hero fast picked his barbed arrows, and fast he shot and every shot brought to his feet one of the terrible man-eaters, till at last he had slain every one. Or, if indeed, any of the tribe had escaped, they had flown far away, for never after, in all the long history of Lake Stymphalus, have such creatures appeared again above its fair waters.
So ended the sixth labour of Hercules.