A white bird is waiting at home: a spouse and small children in a nest in Stacky Bird. She flew off to hunt for worms, but damaged her wing and now she cannot fly. She will have to move along the path, which is full of obstacles. To overcome them, you need to be able to jump, but the bird cannot. Therefore, you must help her by substituting white square blocks whenever another obstacle appears on the way. One click - one block. Watch the height or width of the barrier so that there are enough blocks for the bird to pass safely. She will move as if on a flat surface thanks to you in Stacky Bird.