Because birds are too small, they can only see a small area. Nowadays, glass is too transparent. Even for us humans, if we don't notice the existence of the frame, we will mistakenly think that it is an open channel, not to mention a bird that is so many times smaller than it. Their vision is far from a whole window. They can only see a small area, so naturally they can't recognize it clearly. When I was young, birds often crashed into windows. I once witnessed a tragedy. That was when I was in high school. In the morning, the weather is fine and sunny. It is rare for a teacher to be absent from class, so my deskmate is sleepy. The author bowed his head and thought about what to eat at noon. Bang? 1, interrupted the author's dream of food and woke up the author's deskmate. We looked at the window in turn and saw a poor bird hit it and landed on the windowsill, dying. The students spent a lot of time bringing the bird into the classroom and feeding it some water, so they were helpless and watched the gray feathered bird lose its life little by little. This is the first time I have encountered the disappearance of my life, which has left a great shadow in my heart. Later, I also experienced several times when birds hit the window. I've been wondering why birds always hit the windows of this kind of classroom, but not at home. Later, I looked it up on the Internet and found out that it was because the branches and branches reflected on the glass window would make the birds mistakenly think that the other side was also a forest, so they plunged into it. Therefore, it is rare for birds to hit the windows of high-rise buildings, but it is those buildings surrounded by trees that are more likely to harvest a dizzy bird.

If you want to protect these dizzy animals, people need to reduce the transparency of the windows, so that birds can know that there are obstacles in front and can't fly over, and the indoor light source should not be too bright, so as not to make birds mistakenly think that the windows here are passages.