Rated 1 out of 5 by 1
reviewer.
Rated 1 out of 5 by Doug Magic Halo doesn't work
The Magic Halo doesn’t work. At least it didn’t work for me. It deterred the House Sparrows (and all my other birds) for a few days. Then they came back with a vengeance. I put it on an Absolute Squirrel Proof feeder that the sparrows were mobbing. When the sparrows returned, I added the monofilament lines. Perhaps it would have worked if I’d immediately put the whole system on a “new” tube feeder. For me, it was a total bust.
June 9, 2012