The easiest solution is to let your windows get dirty, or use soap and water to cloud them and reduce reflections. Use window screens: Exterior window screens obscure reflections and provide a visual barrier for birds.
The researchers also mounted superfine nets in front of the windows to keep birds from actually hitting the glass. Both films helped to prevent bird strikes by more than 35 percent when put on the outside surface, the study found—but films on the inside had no benefit at all.
Birds may attack windows to claim territory. Attacking the blass on purpose is a territorial issue. We often get calls from people with a different problem. Instead of birds hitting their windows inadvertently, they are flying against the glass on purpose – attacking their own reflection.
You Need to Have Faith
This is especially true if the bird keeps coming back to hit your window. The spiritual meaning of this is that even when times are tough and life seems uncertain, trust that something better is on the way. Hang in there and have faith that it's all part of a larger plan.
Cover the glass to make it opaque and reduce reflection
Try covering the outside of the glass with a physical barrier such as shade cloth or opaque screens to remove any reflection. If netting is used please ensure it is white and a suitable gauge so that birds can see it easily and do not become entangled in it.
As such, if a bird hits a double glazed window, you'll probably only see damage to the first outer pane. Of course, in an older double glazed window, where the pressure seal no longer works properly, a bird could still break both sheets of glass.
In the United States alone, up to one billion birds are killed each year after colliding with buildings. While window collisions can happen at any time of year, they are especially common during migration. Artificial light at night exacerbates the risk of collisions for migrating birds.
In fact, glass is invisible to both birds and people: you can see the dirt on dirty glass, but not the glass itself. But people learn, from a very young age, to recognize cues—such as window frames and door hardware—that tell them glass is there.
There you have it, falconry is truly the best option available to scare away pest birds and keep them away for long periods of time. Shop bought deterrents simply do not have enough effectiveness such as the response to smaller birds' fear as seen with falconry.
#1: Close your curtains or blinds
Birds don't see glass as a physical barrier, but they will see your window coverings. Drapes, blinds, curtains, awnings, and other coverings also reduce window reflection, making it harder for birds to mistake a reflection of trees and sky as the real thing.
Wind chimes that sway in the wind also deter birds because they don't like the movement and sound. Since birds fly through small spaces, you should put window decals close to each other. Also, using window decals of owls or other birds will make birds want to attack your windows.
The unique sound wave that comes off a set of wind chimes is known to scare away birds and other animals. Wind chimes double as decor and add charm to your porch while also deterring birds from entering your windows.
Birds sometimes attack windows and especially tinted glass, by pecking or striking them. This is usually because they can see their own reflection, and think it is a challenger for their territory.
Bird seed on window sill
One way to attract birds to a window is to place birdseed on the window sill. This will give the birds a place to land and eat so you can view them right outside your window.
The 2x4 Rule indicates developing pattern with horizontal lines or other shapes spaced no more than 2” apart or vertical lines spaced no more than 4” apart can deter collisions (American Bird Conservancy Prescriptive Rating Guidelines for Bird-friendly Materials.
Bird-safe glass works by transforming window glass into a barrier that birds will see and avoid. Glass that can be considered safe for birds has patterns (visual markers) across the entire surface to mute or distort the reflections of surrounding elements. The patterning can be made from various design elements.
Birds don't see a reflection; they see an intruder. They can spend hours flying at this illusion, determined to drive away "the other bird." The most common songbird species that attack their reflections (and your windows) are Northern Cardinals, American Robins, bluebirds, towhees, sparrows and sometimes mockingbirds.
The Smithsonian Institution's Feather Identification Laboratory has identified turkey vultures as the most damaging birds, followed by Canada geese and white pelicans, all of which are very large birds. In terms of frequency, the laboratory most commonly finds mourning doves and horned larks involved in the strike.
The sandwich of air between the two sheets of glass acts as a shock absorber, making it very difficult indeed to break a double glazed pane by hitting it in the middle. This is why the hammers placed in trains for use in an emergency should always be used on the corner of the window.
The fear that a lone magpie will bring bad luck is fairly common throughout the UK and Ireland, but in some areas there are more specific magpie superstitions: Scotland – A single magpie seen near the window of a house is a sign of an impending death.
Keep Screens on Your Windows
Insect screens on the outside of windows can significantly reduce reflection and provide a bit of cushioning if a bird flies into them. Be sure to leave the screens on year-round. External shades, solar screens, and awnings also minimize reflections.
Kookaburras, Magpie-larks (Pee-Wee), and some other birds, will sometimes attack their reflection in a window. This is usually a territorial behaviour, which occurs mainly in the breeding season: the bird sees its own reflection in the glass as a rival.
The first step is to understand why birds fly into windows: It's usually because when they're looking at the window, they're seeing the reflection of sky or trees instead of a pane of glass. They think they're following a clear flight path.