There's an elk herd that I'm told uses part of my(soon to be purchased) property and I want an effective - non lethal - way to keep them off my plants. My uncle used to use bird bangers for crows in his fields, but I really would prefer something like a plant they despise the taste or smell of. Putting a high enough fence around the plot won't work. Damn that's expensive! Putting in some forage they like isn't out of the question. I've got enough space that I can put them out in the corner of the property.