But it may also be that the bird was frightened during the flight, panicked for a moment, and was influenced by the reflection of the wall with special color, so it didn't find the right position for a moment and accidentally hit the wall.
Extended data
The magnetic field will also affect the flight safety of birds. Birds can use the earth's magnetic field to navigate, but the mechanism is not clear.
According to the hypothesis put forward by Klaus Shulton, who works at the University of Illinois at Urbana-Champaign, this is a retinal protein called pigment. When exposed to light, molecular pairs called free radicals are produced. This free radical is electrically neutral and contains unpaired electrons. Electrons are tiny magnets.
Therefore, when their combined magnetic fields are combined, electrons will attract each other and form pairs. However, those unpaired electrons are still magnetic and sensitive to the earth's magnetic field. Because unpaired electrons in free radicals originally exist in molecules that split into free radicals, quantum mechanics stipulates that these electrons are still entangled.
In other words, no matter how far apart the two sides are, one's behavior will affect the other. This hypothesis shows that when two kinds of free radicals are separated, their perception of the opposite effect of the earth's magnetic field is enough to change the way they interact with other chemicals, including those that can produce nerve impulses. At the same time, through entanglement, they can transmit this information to each other, thus affecting each other's reaction. Calculations show that this is enough for the bird's brain to explain the magnetic field.
A bird's eyes may see a specific pattern of spots in front of its eyes. When a bird recognizes it, its eyes are fixed. In fact, when birds recognize the geomagnetic north pole, they can indeed scan their heads in this way. Of course, both of these assumptions are correct. Birds may also have two sets of magnetic induction abilities, one focusing on finding the north and the other focusing on magnetic inclination.
This mysterious sixth sense depends on more mysterious quantum mechanical effects. There is also a poetic explanation for this, which is Einstein's ghostly action at a distance.