Witch-king's Fellbeast

The Witch-King's Fell Beast is a conjectural name of the gigantic flying pterosaur-like creature on which the Witch-King of Angmar rode on during the War of the Ring in Middle Earth.

The Witch-King's Fell Beast was the largest of these creatures. It was, like all fell beasts in Mordor, fed on foul meats by Sauron.

In The Two Towers movie, in the fell beast's first appearence, it flies over Osgiliath being attacked by Mordor, and it almost captures the hobbit Frodo Baggins, after it's master sensed that the One Ring was with the hobbit. But before the fell beast attacks Frodo, the other hobbit Samwise Gamgee saves him, and Faramir arrow shots the fell beast's neck. Frightened, the beast flies into Mordor.

It was especially prominent during the Battle of the Pelennor Fields, where it, along with the other fell beasts, grabbed Gondor soldiers and his horses and throws them down the floor in the air. Later, when the Rohan army arrived to help Gondor, the Witch-King ordered the fell beast to attack king Theoden of Rohan, and feast on his flesh.

The fell beast attacked and eventually killed Snowmane, Théoden's horse. The horse fell on Théoden, crushing him. Dernhelm (who revealed herself as Éowyn) defended the dying Théoden, and challenged and beheaded the beast.

Even headless, the beast yet lived a few seconds before die. It's master, the Witch-King, furiously attacked Éowyn, and almost killed her, but she survived and eventually killed him with the help of the hobbit Merry.

Not more than ten days later, Sauron himself would be destroyed, and all the fell beasts in Mordor would die.