I use CD's to keep the birds off our fruit trees. Have to alternate them with another method each year so they don't get used to them. Blown up wine cask bladders are also useful, along with tinsel and this year I tore up some old sheer curtains into rectangles and wrapped the developing figs in them (I just stapled the bottoms and the ends with an old office stapler. Amused my eldest stepson....he thought all the white envelopes were undies