Grey bird

The Grey Bird is a bird never seen in any of the games or any of the levels, it was only seen in one picture.

Apperance
The Grey Bird is a large round bird, with a large, sort of rectangular beak. It has a scar in between its eyes, and bags under its eyes. And also has large eyebrows.

Trivia

 * The Grey Bird sort of resembles the Brother Bird.
 * The Grey Bird was only seen in a old promo picture for Angry Birds.
 * The Grey Bird might have been an early beta bird, possibly the orinigal version of the Brother Bird or the Mighty Eagle.