Birds have been traveling from one region to another for thousands of years. This journey of thousands of miles has now become part of their genes. This is why when their new generation starts flying, they reach the place where their ancestors used to come without straying.
Have you ever wondered why millions of birds fly from the glaciers to the plains every year as winter begins and then as the weather begins to change, those lucky birds fly back? Fill in the blanks to avoid being targeted by predators.
The simple answer is that they fly thousands of miles in search of food. It takes them several weeks to succeed in their destination. Many of these birds also come to Pakistan and camp on the banks of rivers and lakes. These migratory birds include the koonj, which is a special theme of folk songs in many regional languages of Pakistan.
Until now, experts have speculated that birds from Siberia and other snow-covered regions migrate in search of food in early winter, especially in the winter to raise their young, whose food is difficult to obtain. Goes They move with their children to relatively temperate plains and when the weather warms up, they spread out to their homeland to have new children.
The question is, when they get food after thousands of miles of arduous and tiring flight, why do they go back after a few months and not take up permanent residence in places where there is food? ۔
Experts say that we have many birds and animals today that do not have a homeland. They had migrated here from other areas, but they liked the area so much that instead of going back, they adapted to the local climatic and geographical conditions and that is what is happening.
But despite thousands of years of generational flight, why aren't migratory birds choosing this route for themselves? This question has been lingering in the minds of scientists for a long time and they were doing research on it.
A study published in the scientific journal Niger Ecology and Evolution found that the plains are home to a wide variety of birds and food is not easy to obtain. Migratory birds, however, get something while there is nothing left to eat in their homeland during the snowy season.
Migratory birds are probably in the mood to fight for food and work harder, so they prefer to return to their homeland when the weather changes.
Mars Somol, a scientist at the University of Oxford's Department of Zoology who co-authored the study, says migratory birds fly from warmer climates to the northern hemisphere at the end of winter because they need food there. There is no competition to do.
Bird species and their numbers are much smaller in these snowy and rocky areas than in the plains. In this way, they have plenty of food in their homeland in summer.
This latest research provides an answer to the ancient question of why birds living in the snow-covered northern hemisphere have been migrating for thousands of years.