Cygia-Rema

Cygia-Rema was a remote mountainous world where various avian species developed as the dominant form of life. It was half-way across the Mutter's Spiral from Earth and Mars.

In the planet's pre-history, the Time Lords arrived and built a machine to seal a scar in spacetime. Later, centuries after the 21st century, the planet was ruled by the Vultriss and was visited by the Sixth Doctor, Constance, and Flip during their contact with the Ice Warriors. (AUDIO: Cry of the Vultriss)