Rackham. Corvidae / Carrion / Hooded Crow / Raven. Crows are remarkably intelligent, kind birds who look after their elderly parents. They make a variety of calls (kowws / eh-aw) and can hear sound frequencies lower than humans. Have been known to imitate human voice. Amazing use of tools such as knives cut from stiff leaves. Eat toads - c.f Witches nest.