I made the Sparrow Hawk Vtol from Halo (the video game) r

Sparrow Halo. Destiny Hunter and Sparrow (Halo) Custom Action Figure Sparrows do not like anything above them, so with this halo hanging above the feeder they will stay away, thus leaving the birdseed for our native songbirds Studies have shown that certain bird species, including house sparrows, will not fly under elongated wires

Sparrows do not like anything above them, so with this halo hanging above the feeder they will stay away, thus leaving the birdseed for our native songbirds My experiments with this weight of wire did not go well.

AV22D Sparrowhawk Halo Fanon FANDOM powered by Wikia

From Backyard Wildlife Tips for Success: Another option for excluding House Sparrows is a hoop device developed from research at the University of Nebraska and now marketed as the patented Magic Halo Since using the halo for more than 2 weeks, I have only had to refill the black oiler feeder once The original Magic Halo was invented and patented by the University of Nebraska.

Magic Halo For Bird Feeders Flashback BirdX "SparrowFree Magic Halo. It is arguably more House Sparrow-resistant and goes further to reduce any. They cautioned not to use monofilament which could entangle birds

Steam Custom Edition SPV3 Sparrow Hawk Prop. A proven way to keep house sparrows off of your feeders The product is a hoop device consisting of a series of wires attached to the top of a birdhouse or feeder, extending beyond its extremities, under which all birds intending to use the feeder must pass