Basilisks also known as the cockatrice has the wings and head of a rooster and the body of a serpent or dragon. A basilisk is born when a seven or nine year old cock lays a spherical egg on a dunghill and it is hatched by a frog or snake. Basilisks can turn things to stone and all the land around them is barren from their scorching breath. If you can get one to look in the mirror it will instantly turn to stone itself.