Yune

Yune is a non-playable character from Fire Emblem: Radiant Dawn. She is the Goddess of Chaos, and one half of Ashunera, the other being Ashera. Dheginsea framed her as being a dark god after Ashera's Three Heroes sealed her in Lehran's Medallion, using seid magic. At one time, Ashera wanted to destroy her at all costs, but Lehran convinced her to seal Yune away.

She is also the small orange bird Micaiah owns, and Yune speaks to her in this form before Micaiah sings the Galdr of Release. If the chaos of war forced her to awake, then Ashera would also awake and pass her judgement upon the world. But, if the Galdr of Release awoke her, then Ashera would have to speak to Yune first before passing her judgement. Unfortunately, Ashera broke this agreement and turned most of Tellius' inhabitants into stone.

(Source: Fire Emblem Wiki)