Actually, the gathering of crows over cities often occurs in Canada. This is because in winter, due to the urban heat island effect, the temperature in the city is higher than that in the woods and mountains, and they will be in groups. Fly to the city to get warm. As a group activity animal, tens of thousands of crows gathered in the sky over Canada for 14 hours. Fortunately, this large-scale gathering of crows did not affect local public facilities.
After this incident, 750,000 starlings gathered in a small town in the United Kingdom. This time it was more serious than that in Canada, because it also caused a power outage in the area, which is more than the number of crows over Canada. Much, what is going on?
This is a small town in Scotland in the United Kingdom. On December 18, there were continuous power outages. After remodeling the local area, engineers did not find any interrupted lines and did not determine the reason for the power outage. In the end, this small town Thousands of starlings have been found appearing. These starlings are gathered around the wires. As a bird, its soles are "insulated" and will not get an electric shock. The main reason is that these starlings gather. Around the wire, the population is too large, causing the wire to sway and trip and power outages.
The local power engineer said that he has worked here for 14 years and has never seen a power outage due to too many starlings. Starlings lasted 26 minutes over the local area, which also attracted the attention of the local government. According to estimates, the number of these starlings is around 750,000. The Canadian crow appeared because of the urban heat island effect, so why do these starlings gather in small towns?
In order to solve the problem of local power outages, the local government is trying to manage these starlings. They used sound amplification equipment to imitate the calls of starlings' natural enemies, and finally drove the 750,000 starlings away. To put it simply, this large-scale appearance of starlings should be a gathering. They quickly scattered and fled during the drive, which shows that their habitat is not far from the town.
When winter is approaching, these starlings are likely to gather together to prepare for winter survival. Not only can they become warm, they can also share the information they have obtained. During the flight, they can also catch food in groups. What is your opinion on these two large-scale biological gatherings?
