Many homeowners knowingly or unknowingly attract birds to their home. Some people love having them in their yards and feeding them. But this simple pleasure can be life threatening to birds that often fly into glass windows.
Glass windows are invisible to birds, and birds may fly into them as they try to reach potted plants on the other side. The glass may also reflect the sky or vegetation, causing birds to fly into them. One study suggests that these types of accidents are so common that over one billion birds die each year in North America from hitting glass windows, walls, and similar structures.
Fortunately, you can help save the bird population by reducing the threat your home windows pose to birds. First, you should identify your hazardous windows, which may include large picture windows, windows with feeders, or windows that join at 90-degrees. Look at the windows from outside your home, if you see any reflection of the sky or foliage, those windows are a risk to birds. Follow these tips to make your windows safer for birds.
Mark Your Windows
Use tempera paint or soap markings to deter birds. These markings should be spaced apart 4-inches vertically and 2-inches horizontally on the outside of the window. You can also use other paint patterns to make the glass visible to birds.
Apply Stickers to Windows
Apply stickers, decals, masking tape, mylar strips, sun catchers, or other sticky objects to the exterior surface of the window. Use close spacing and cover as much of the glass surface as possible, so the transparent areas appear too small for the birds to fly through. You could also apply long-lasting bird tape.
Hang Bird Savers
Consider hanging Acopian Bird Savers or Zen curtains, which are closely spaced ropes that function in a similar manner to tape or decals. They come in great designs that also help to beautify your windows.
Consider placing mosquito screens or netting on the outside of the window so it’s tight enough to cause birds to bounce off before hitting the glass surface. The mesh should be small so birds don’t get their heads, legs, or wings entangled.
Use Window Covers
Consider installing exterior shutters or interior vertical blinds that remain closed when the rooms are not in use, or awnings/sunshades to prevent reflections that may attract birds.
If you are remodelling your home, you should consider working with your window and door company to employ strategies that prevent birds from flying into windows. For instance, you may use one-way transparent film that makes the window opaque from outside but offers a clear view from inside.