how often do birds fly into windows

Unfortunately, several hundred million birds are killed each year as a result of collisions with windows.

Birds of all shapes and sizes travel at speeds high enough that a window collision almost always proves fatal. Birds that survive immediate impact are stunned and often fall prey to predators, like domestic cats, soon after a collision.

How to Safeguard Your Windows For Birds

how often do birds fly into windows

Determine which windows pose a risk first, such as large picture windows, windows paired at an angle, or windows with feeders outside. Step outside and observe your windows through the eyes of a bird. The birds will see what you see if you can see branches or the sky reflected in or visible through the glass. It is no longer believed that previous guidelines regarding safe separations for feeders outside of windows are relevant, according to Sheppard. “Make your windows bird-friendly and don’t worry about how far away they are if you have windows near a bird feeder.” ”.

Why Birds Collide With Windows

how often do birds fly into windows

Daytime and nighttime window collisions are the two primary categories. Birds collide with windows during the daytime because they can see vegetation or potted plants on the other side of the glass, or they can see reflections of the vegetation. Most songbirds and other nocturnal migrants crash at night when they fly into illuminated windows.

For reasons not entirely understood, lights divert nocturnal migrants from their original path, especially in low-ceiling or foggy conditions. In the lighted area, they mill about, sometimes colliding with one another or the lighted structure. As a subsequent hazard, migrants drawn off course by urban lighting may roost safely nearby, only to become vulnerable to daytime reflections in windows the following day. The BirdCast project and the Fatal Light Awareness Program have more about this problem.

One more reason is that birds occasionally target their reflections in windows. When territoriality is high in the spring, this occurs most frequently. Despite the fact that it may irritate the homeowner, the bird’s survival is rarely in danger. The majority of the solutions listed below for window strikes also address the issue of birds attacking reflections.

Observe Bird Collision Patterns

Window strikes frequently follow a pattern. Occasionally, and during specific times of the day, you might discover dead or injured birds under the same window. Place yourself right in front of the glass to observe what birds are seeing in the reflection. To see the window reflection in various lighting conditions, repeat this at different times of the day.

Keep an eye on bird feeders and birdbaths to determine if birds are flying from those areas and hitting windows. If so, the majority of researchers concur that moving the feeder closer to the window is a good idea. Rarely do birds flying from a feeder that is only two or three feet from the glass reach a fast enough speed to cause harm to themselves.


Is it common for birds to fly into windows?

For birds, glass windows are worse than invisible. By reflecting foliage or sky, they look like inviting places to fly into. And because the sheer number of windows is so great, their toll on birds is huge. Up to about 1 billion birds die from window strikes in the U.S. each year, according to a 2014 study.

How often do birds survive hitting windows?

Window strikes are among the top three human-related cause of bird deaths, along with cats and habitat destruction. Up to one billion birds die each year in the United States due to collisions with windows and research shows that 54-76 percent of window collisions are fatal.

What time of year do birds fly into windows?

Unfortunately, window strikes are common for wild birds, especially during their mating and migrating seasons in spring and fall, so figuring out how to stop birds from flying into windows can help save their lives.

Why does a bird fly into the window every morning?

This is usually because they can see their own reflection, and think it is a challenger for their territory. Birds such as the Laughing Kookaburra, Little Raven, Grey Butcherbird and the Australian Magpie-lark have been seen to do this.