basilisk: (classical mythology) a serpent (or lizard or dragon) able to kill with its breath or glance
mythical monster: a monster renowned in folklore and myth
passeriformes: largest order of birds comprising about half the known species; rooks; finches; sparrows; tits; warblers; robins; wrens; swallows; etc.; the four suborders are Eurylaimi and Tyranni and Menurae and Oscines or Passeres