What is "opinicus"

Opinicus \O*pin"i*cus\, n. (Her.) An imaginary animal borne as a charge, having wings, an eagle's head, and a short tail; -- sometimes represented without wings.

n. (context heraldry English) An imaginary heraldic creature with an eagle's head, a short tail, and sometimes wings.

In the Dungeons & Dragons fantasy role-playing game, the opinicus is a type of monster.