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Sparrow-Free Magic Halo is a patented wire
hoop device with vertical extension wires
that attaches easily to the top of a feeder.
Studies have shown that certain bird
species, including house sparrows, will not
fly under these wires.
Developed after decades of research into
risk aversion and foraging habits of birds by
Dr. R.J. Johnson at the University of
Nebraska, Lincoln. Dr. Johnson is a
professor of Wildlife Biology and Extension
Wildlife Specialist in the School of Natural
Resources at UNL. Detailed study
information on request.
Improve your feeding program.
With messy, invasive house sparrows, blue jays
and common grackles out of the way, desirable
birds have
•better access
•less competition
•more food
•more time for predator scanning
More beautiful songbirds at your
feeder, and no wasted birdseed.
Sparrow-Free Magic Halo
Weight: 2 pounds
Diameter (assembled) 30”
Made of zinc plated, powder-coated steel
Birds and feeder not included.
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