the meaning of sirens 2

I done even more research and I found almost the exact same thing:

• THE SEIRENES (or Sirens) were three sea nymphs who lured sailors to their death with a bewitching song. They were formerly handmaidens of the goddess Persephone. When the girl was secretly abducted by Haides, Demeter gave them the bodies of birds, and sent to assist in the search. They eventually gave up and settled on the flowery island of Anthemoessa.The Seirenes were later encountered by the Argonauts who passed by unharmed with the help of Orpheus, the poet drowing out their music with his song. Odysseus also sailed by, bound tightly to the mast, his men blocking their ears with wax. The Seirenes were so distressed to see a man hear their song and yet escape, that they threw themselves into the sea and drowned.The Seirenes were depicted as birds with either the heads, or the entire upper bodies, of women. In mosaic art they were depicted with just bird legs

• In Greek mythology, the Sirens are creatures with the head of a female and the body of a bird. They lived on an island (Sirenum scopuli; three small rocky islands) and with the irresistible charm of their song they lured mariners to their destruction on the rocks surrounding their island (Virgil V, 846; Ovid XIV, 88).
  The Argonauts escaped them because when he heard their song, Orpheus immediately realized the peril they were in. He took out his lyre and sang a song so clear and ringing that it drowned the sound of those lovely fatal voices. When on another journey the Odysseus' ship passed the Sirens, had the sailors stuff their ears with wax. He had himself tied to the mast for he wanted to hear their beautiful voices. The Sirens sang when they approached, their words even more enticing than the melody. They would give knowledge to every man who came to them, they said, ripe wisdom and a quickening of the spirit. Odysseys' heart ran with longing but the ropes held him and the ship quickly sailed to safer waters (Odyssey XII, 39).
  Homer mentions only two sirens, but later authors mention three or four. They were regarded as the daughters of Phorcys, or the storm god Achelous and either Melpone, Sterope, or Terpsichore. Libanius on the other hand relates that they were born of the blood of Achelous when he was wounded by Heracles.
  According to Ovid, they were nymphs and the play-mates of Persephone. They were present when she was abducted and, because they did not interfere, Demeter changed them into birds with female faces (Ovid V, 551).

• Civil defense siren