Ruby

Ruby (also known as Female Red Bird or Girl Bird)

Angry Birds Seasons
In the game, she isn't playable, only appearing in the ending cutscene of Hogs and Kisses. In the cutscene, she is spending time with her boyfriend Red while Cupid Pig shows defeat in the background.

Angry Birds Friends
In the Facebook version of the game, she appeared in the Bird-O-Matic as character that could be chosen as the avatar. She could appear without her bow and could be dressed with any of the objects and be put in any background.

Angry Birds Evolution
Girl Bird appears as a sticker on Peck Girl's baseball bat.