https://www.cottagecraftworks.com/starling-trap-v-top-plan-book
I built one of these traps 30 years ago and virtually eliminated European Starlings from my neighborhood in a mere 2 months time in the dead of Winter. You can do the same. It works just as well against English House Finches, AKA, English Sparrows. This is a "must have" for people like me who have Purple Martin colonies. This trap can be easily transported to distant problem sites.
I built one of these traps 30 years ago and virtually eliminated European Starlings from my neighborhood in a mere 2 months time in the dead of Winter. You can do the same. It works just as well against English House Finches, AKA, English Sparrows. This is a "must have" for people like me who have Purple Martin colonies. This trap can be easily transported to distant problem sites.