The Sirens were poultry with a female head. They were living in the seas. Their power lay in their upper body appearance: they were beautiful, young women and had a charming voice when they sang. They used their singing to lure sailors who were passing by their island and slaughter them. The great hero Odysseus (Ulysses), clever as he was, sealed his sailors' ears with wax and bound himself to the mast of his ship, to enjoy himself the beautiful song of the Sirens, without getting in the temptation of following the seductive Sirens.
