Install a stake on either end of the blueberry bush, setting each stake 6 to 8 inches away from the outermost branches of the bush. Use a stake 1 foot taller than the bush and drive the stake 6 inches into the ground.
Place two more stakes on the opposite side of the blueberry bush. The four stakes form a box around the bush.
Drape a sheet of bird netting over the stakes. Arrange the netting so the bottom of the net trails on the ground on all sides of the bush.
Mound mulch or soil on top the netting where it drapes on the ground. Anchor all sides of the netting so birds and animals can't access the bushes by going under the netting.
Tie strips of shiny, foil coated paper to the netting. The paper flutters in the wind, frightening away both birds and animals.