Here you see my muscadines on the left are about 8 ft. or so from the chain link fence on the right on which a Virginia creeper has volunteered. (Incidentally, one magazine I read said that because of the way a Virginia creeper attaches itself, a chain link fence will be difficult for a Virginia creeper to grow on. Guess my vine forgot to read that magazine.)
Of course, this works for me because I don't mind damage to the Virginia creeper vine that just volunteered along the fence.
Another decoy is the wild cherry. The birds seem to prefer them to the blueberries. That works for me too.
Have you had any successes with companion plants?