Sand

Sand is a very soft block that first debuted in Beach Volley and Carnival Upheaval in Angry Birds Rio. It is similar to the snow from Season's Greedings, and cloud from Hogs and Kisses. It also appeared in the Angry Birds Seasons Piglantis episode. All Birds minus the Pink Bird can break it.

Trivia

 * Sand, along with Snow and Clouds are the softest breakable materials used for forts.Abs_piglantis_1-9.jpg