Are the living conditions of American robins seriously affected by climate change?

American robins live in the United States and Mexico most of the year. But when spring comes, they will fly to the north together. There, they look for mates, build nests, start families and try to eat. But scientists found that robins now fly to the north earlier than before. This is because the global temperature is warming and the warming season in the north is much earlier than before. Therefore, it also changed the migration time of robins.

1. Robins migrate earlier, but due to the change of global temperature, the warm climate in the Arctic comes earlier than before, so some scientists are wondering whether this climate change has affected the migration habits of American robins. In order to find out, we organized an observation team to go to Slave Lake in Canada, because that place is a resting place for birds flying to the north. After 25 years of investigation and study, it is shown that since 1994, their flight time to the north will be about 5 days earlier every decade. Up to now, it is earlier than the start 12 days. In order to solve this mystery, they installed advanced GPS equipment on more than 50 robins.

Second, the reasons for the early migration. This series of GPS data can be combined according to various weather changes and all weather data that can affect their activities. Through quantitative analysis, it is found that the robin flew to the north ahead of time, mainly because the climate in the north warmed and dried up ahead of time, when the north was covered with snow. Scientists said: In the past, it was generally believed that birds would respond to food supply, for example, when snow melted, they could have food to enjoy, but this result told people that this idea was not reliable.

Scientists say that this is only the first time that environmental conditions can change the migration pattern of animals. This information can help people make forecasting instruments and judge the reaction of birds when the weather changes. At the same time, migration will also affect the reproduction of birds, so it is very important to know the timing of migration. Scientists have begun to plan all migration routes of birds, not just from stopovers. With the efforts of scientists, I believe it will bring us more information about birds in the near future.