A square in Hunan has been closed to migratory birds for three days. Does it affect migratory birds?

Spotlight has an effect on migratory birds. Shooting lights for three days in a row is to let migratory birds find the right direction and migrate successfully.

A square in Hunan has been shooting lights for migratory birds for three consecutive days;

In order to protect the safe migration of migratory birds, Lanshan County, Hunan Province turned off the city lights for three consecutive days. On the night of September 25, 2020, flocks of egrets flew over Lanshan County for a long time at low altitude and circled over Sanlan Square. The main reason for this phenomenon is the continuous rain and low visibility in Lanshan County, Hunan Province. At night, migratory birds are easily attracted by the beam emitted by spotlights, and once egrets hover around the beam for too long, they will run out of energy needed for birds to fly. After learning this situation, the local urban management bureau informed the person in charge of the city square in time, put out all the spotlights and some street lamps in the square, and advocated that high-rise buildings and hotels should actively put out neon lights to make way for migratory birds and protect their safe journey.

Factors affecting migratory birds' migration:

One is the temperature. When the local temperature is high, there are fewer migratory birds, and when the local temperature is low, there are fewer resident birds. The second is food. Migratory birds are warm-blooded animals, and their perception of temperature factors is realized through food. The temperature drops, the activities of food itself stop, and the foraging of birds is also restricted, which leads to the migration of migratory birds. The third is the length of sunshine time. The migration time of some migratory birds is stable every year. According to experiments, it is related to the sunshine market. When the sunshine reaches a certain length, it will trigger some reaction mechanism in migratory birds and induce migratory birds to migrate.

The influence of spotlight on migratory birds;

In foggy days, it is difficult for migratory birds to find their way during migration. If there is a spotlight at this time, migratory birds will want to fly in the direction of the spotlight. If the spotlight is on for a long time, it will attract the attention of migratory birds and affect their direction recognition, which will lead to migratory birds hovering around the spotlight and unwilling to leave, which will seriously affect their migration. Take the initiative to turn off neon lights, exterior wall lights and other spotlights, in order to protect the safe migration of migratory birds.