They also eat holly berries, cherries, elderberries, poison ivy, bay, and blackberries. The red stripes were dyed with cranberries and the blue with elderberries. These included seeds of wild grapes, elderberries and prickly pear fruit, often in large quantities. It is distinguishable from other elderberries by the glaucous powder coating on its bluish-black berries. The sugar, barley, and elderberries are organic. Willows and elderberries are found along the intermittent streams. In Northern California, elderberries are a food for migrating band-tailed pigeons. Groups such as The Elderberries and Cocoon were formed there. The soundtrack was scored by Bruno Coulais and featured songs from The Elderberries.