Bird feeder plans bird house feeder diy bird feeder bird houses for sale bird house kits wooden bird feeders wooden bird houses wooden planters outdoor planters. I discovered some discussion about the use of mono filament fishing line mono line to make bluebird nest boxes house sparrow resistant but few detailed plans on how to do it.
In addition sparrows don t like a shallow box and bluebirds don t seem to mind.
Sparrow resistant bluebird house plans. This kentucky style slot entrance bluebird house is designed to thwart sparrows. House sparrows chase bluebirds away crush their eggs kill nestlings and also kill adult bluebirds. House sparrows also called english sparrows are aggressive birds that compete with bluebirds for nesting boxes or birdhouses.
This box is only 5 deep but if sparrows still continue to be a problem a wooden. How to make a slot box sparrow resistant. According to research at the university of kentucky bluebirds prefer a slot entrance to the standard circular hole sparrows prefer the opposite.
House sparrows chase bluebirds away crush their eggs kill nestlings and also kill adult bluebirds. I looked at these few plans and improvised my own methods with i will refer to as treatments. Sparrows will avoid this depth but bluebirds will still occupy the house.
Deb in delaware my bluebird box has an opening that is a slot. How to sparrow proof a bluebird house. I don t believe that one can make.
Also sparrows tend to avoid shallow homes so the sparrow resistant bluebird house was constructed to be only 5 deep and includes a wooden insert to adjust the depth to a mere 3 1 2. It s supposed to be sparrow resistant but the house sparrows want it anyway. Because they adapt quickly to most deterrents finding a single means of sparrow proofing is difficult.