The Sirens!

"The SIRENS, they say, had maidens' features, but from the thighs down they had the forms of birds. One of them played the lyre, another sang, and another played the flute. By these means, and by clever, knavish, and deceitful words, they persuaded passing mariners to linger, thus causing their destruction. That is why the island where they lived was full of the bones of those who had perished."

Picture credit and Greek Mythology Link