The Labors of Herakles
Some say the birds were women. Artemis Stymphalia ruled the swamps about the lake. Her temple there had pictures of young girls with the feet of birds. These girls lured men to their deaths in the swamps. They were said to be the daughters of Stymphalos and Ornis. These two were killed by Herakles when they would not give him food, drink, and a place to rest.