Interesting idea using UV Spray Paint (sunblock) to draw in migrating monarch butterflies to eat some milkweed nectar on their way over major cities. The image above is a screenshot from one of the videos, the flower is the graffiti that becomes coated in sunblock and acts as a “fast-food sign on a highway” for monarchs.
I think it’s interesting to use existing materials and conditions, but to draw special attention to them. I’m not sure that this is the most effective realization of this idea, then again it’s just a prototype…
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