I use that cheap bird netting I used to use around the pond .I used bamboo stakes and then just tied strips of cut up plastic bags to scare off the birds .When the wind moves them and they make slight noises they seem to stay away .I also used cheap dollar store wind chimes by the plants .I had some seashells and drilled holes in them and used fishing line to make cute wind chimes also .Dollar stores come in handy for stuff like that .I also pick up lots of shells when I go to Atlantic City to visit friends