Most bird feeders are a pretty raw deal. In exchange for an enormous supply of food that you have to constantly replenish, they give you very little in return, since the show usually ends when you come anywhere near the birds, who are spooked. It's as good as a tree branch.
Perfect for everything from bird interrogations to vain birds looking to preen in front of a looking glass, the one-way mirror is tall and wide enough to block the birds' field of view through the regular pane so you can sneak up on 'em. But remember, just because you can hunt and eat a small wild bird, doesn't mean you should.
Can a bird recognize itself in the mirror? If you get this contraption, you'll probably find out.
Ethan Wolff-Mann is an editor at Supercompressor. He saw a hawk the other day and wondered what kind of food a hawk bird feeder would have. Follow him on Instagram.