I would point out that humans, also, primarily find their food using visual clues. And that works pretty well for us
I know a guy (on line) who trains birds to ignore the berries on his berry bushes by hanging fake, inedible berries on them throughout the growing season. He has beads that look like raspberries and blueberries, iirc. Others have asked him how convincing the fake berries need to be, and his answer is that they should fool a human looking at the bush.