I have two of these, and have taken 1000s of flies out of circulation around my house. I got this style because there are replacement baits available. I stocked up with bait and will be ready next spring.
They aren't near or in or near the coop/run, because I wanted to draw flies AWAY from there.
One caveat: oh man, do these STINK! Like rotting meat, which is why they attract flies.
