What kills almost as many birds as outdoor cats – yet is going practically unaddressed?

It’s not hunters, since hunting season is relatively short.

It’s not wind turbines, either, though they’ve gotten a bad rap as bird killers.

The answer is…windows – which is why we’ve pulled together this post featuring 9 ways to stop birds flying into windows. There’s no time to lose!

How Many Birds Are Dying?

According to a study published in 2014 by the American Ornithological Society, up to a billion birds may be dying in the United States each year as a result of crashing into buildings, most frequently into windows.*

And it’s not just the glass on towering skyscrapers that’s the problem, either.

According to the AOS, about 44% of all bird deaths related to glass collisions happen at residences, houses like yours and mine.

I hate to admit it, but I’ve heard more than one bird hit the windows in my living room while I’ve been working away in my office.

Hearing birds sing first thing in the morning makes me happy. I marvel at their incredible and ancient migratory journeys. I also love that birds evolved during prehistoric times, and that so many avian ancestors became some of the animals we most love today.

So when I heard about how many birds are dying because they’re flying into the glass in our homes, I had to do something about it!

For starters, I invited Kimberlee Shaw at Thompson Creek Window Company to make some helpful suggestions about how to stop birds flying into windows. Her recommendations are below.

How Do Windows Kill Birds?

Think about it for just a moment from the bird’s perspective: a window reflects the trees and sky, and often looks like an inviting place to fly to.

If you’re flying over long distances, which you’d do if you were migrating, say, from Florida to Maine in the spring, a nice branch could be pretty inviting – until you collided with the glass reflecting it.

Here’s a picture of the front of my house. Just look at the way the trees are reflected in the windows. If you were a bird, wouldn’t you think that you were flying towards a tree branch instead of a deadly pane of glass?

The windows on my house could attract birds to their reflections.

Birds that migrate at night are in danger, too, because they’re attracted to bright, steady white and red light. If you have big windows that are lit from inside, they act like a beacon to unsuspecting night flyers.

Consider how tiny a migrating bird is. Now imagine it flying at full speed into a solid piece of glass.

Even if the bird hits the glass and flies away, it often dies later from internal injuries.

And that could be happening as many as a billion times a day!

What Birds Are Most Threatened?

Smaller migrating birds seem to suffer the most casualties. Those include:

• Ruby-throated hummingbirds
• White-throated sparrows
• Dark-eyed juncos
• Wood thrushes
• A variety of warblers

Though all birds matter, these small migratory birds are among the ones that fill the world with song.

In addition to the loss of their own unique imprint, when these birds die, all the music they make dies, too.

9 Ways to Stop Birds Flying Into Windows

Fortunately, Kimberlee Shaw of Thompson Creek Window Company says there is a lot you can do to help protect birds from the windows in your home.

Start by identifying which windows pose the biggest threat.

The large picture windows offered at Thompson Creek, or any windows that reflect the sky or trees, are the worst offenders. But they also let in a lot of natural light, which is good.

If you have big windows, here’s how you can make them less appealing to birds, says Kimberlee.

1)Paint or soap: You can use either a bar of soap or tempura paint to create a grid pattern on your window to break up the reflection. The grid should be spaced no more than four inches by two inches to be effective. (NOTE: This would work better in an arid climate with a minimum amount of rainfall; otherwise, the soap or paint will make a mess on your window when it rains.)

2)Stickers: Similar to the first idea, place stickers or decals on your window. You have to put plenty of them on to be effective, following the same spacing so the birds don’t think there’s a spot wide enough to fly through.

The tape stripes on the big picture window discourages birds from flying into the window.

3)ABC Bird Tape: This tape, available from the American Bird Conservancy website** and other online retailers, makes it easy to apply properly-spaced dots or grid patterns on your windows to deter birds. The tape comes in convenient rolls to make application a snap. ABC says that birds generally avoid flying through vertical lines that are 4″ apart or less, and horizontal lines 2″ apart or less. You can see the appropriate pattern in the house pictured above. Better Line Reflective Scare Tape is shiny and moves with the wind, effectively shooing birds away from your windows.

4)Window film: This product covers the entire glass surface and is best applied on the outside of the window. It dramatically decreases reflections from the outside while still allowing a clear view of the outdoors from inside. This gives you the added benefit of privacy while still allowing daylight to enter your home. Some window films will also help reduce solar gain into your house in the summer, helping to keep it cool.

5)Netting: You can install a taut section of netting outside of your window at least three inches away from the glass. This will cushion the bird’s impact and prevent them from hitting the glass.

6)Screens: Regular window screens can cut down on reflections and keep the birds away. To be effective, the screen needs to be installed on the outside of the window and should cover the entire glass surface.

7)Branches: Tree branches can break up the reflective surface when viewed from a distance by the bird. While you can’t move a large tree conveniently, you can plan your landscaping accordingly so that the tree’s growth will eventually create that visual barrier.

8)Motion: Anything that moves in the breeze can make birds avoid the area. Suspend pie pans or CDs or another object from the eaves over the window, making sure they won’t blow into the window themselves and scratch it. If you don’t have eaves, string up streamers of brightly colored fabric.

9)Lighting: Birds that migrate at night can be attracted to or disoriented by the lights of almost any structure.

In fact, birds disoriented by lights can circle structures for hours on end, leading to exhaustion and forcing them to use up the energy they need to complete their migration.

Birds are particularly attracted to steady-burning red and white lights.

Turn outside lights off, replace outside lights with sensor-driven lights, and draw curtains and shades to contain indoor light.

You might be thinking, “Many of these solutions aren’t the most visually-appealing to add to my home.” And you’re right. One option is to make them seasonal. Birds are most susceptible to window collisions in the spring and fall during migration. Make your windows bird-safe during the migration months to make the biggest difference.

Remember:

ABC Bird Tape                                                               Better Line Reflective Scare Tape

Thompson Creek is a Maryland-based company that has received EPA’s Lead-Safe certification, is a top Energy Star partner, and is certified as meeting the National Green Building Standards of the Home Innovation Research Labs.

NOTE: Sponsors help us help you live the greener life you want by providing expert content at no cost to you. We never work with sponsors who do not meet our criteria for environmental responsibility.

*Bird-Building Collisions in the United States

** American Bird Conservancy Bird Tape

More Homeowner Products to Stop Birds Flying Into Windows

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