Hey, guys, have you ever noticed the little ones gliding through the sky every year when the spring flowers are blooming? By the way, the little swallows in black swallowtails! The whole spring is filled with a vibrant atmosphere, how intimate!
However, when the autumn wind blows and the leaves drift away, these friends will pack up and prepare to set off on a long trip. It's puzzling, but where is it? Is it the southern part of China as we usually understand it, or is it more distant?
First of all, we learned that these little ones are not the masters of idle meals, and their consumption is too great! Don't underestimate their small stature, but their speed is a first-class speedwalker. You see, they are flexible in the air hovering back and forth, one moment diving, one moment pulling up, the posture is vigorous and charming, sometimes it is killer, sometimes tender, catching flying insects can be described as a master, full of friends!
When the autumn wind is gradually rising, the little swallow eats insects but it is becoming more and more difficult. The insects all found their own hibernation spots, and hid in the ground, tree holes, and crevices. This is a big deal for the little swallows, and there is a shortage of food!
In addition to food shortages, cold weather is also a big problem. Although swallows are homeothermic animals, how can they withstand the heat and cold? After all, they are so small that they have limited ability to withstand the cold. If you survive this long winter, where will you have the energy to spread your wings in the coming year?
Therefore, before the arrival of the annual winter, the swallows begin to look and mutter from time to time, muttering and discussing, and are full of ambition to start a wandering journey. But where are they going? Let's move on.
Not all small birds escape the winter, some are called "resident birds", and they choose to stay for the winter. And our little swallows belong to the family of "migratory birds", they like to fly around by nature. In the face of the cold, they would rather abandon the comfort of their home than chase the warm sun.
However, the "south" of the little swallows is not so easy to say. Unlike the South as we understand it, their "South" is varied and depends entirely on the personality preferences of each little one. Some young pilots "go north" and only fly from the top of the mountain to the foot of the mountain, some have a medium waist and fly thousands of miles to the temperate regions where the normal year is warm, and some are energetic and far-reaching, crossing several continents to find the eternal warm tropics. The choices of the friends are different, wonderful and fun.
Those little pilots who fly all the way to the hot tropics for the winter, their "south" is actually the tropics. Every year when the spring flowers bloom, they have to fly back to the north to lay eggs and hatch. It turns out that this is because the natural environment in the northern region is more suitable for the growth of baby birds, and the food resources are more abundant.
However, what a price this group of brave adventurers paid to complete the whole journey. Flying over the mountains and deserts, flying over the borders of many countries, and flying over the vast seas, they are always in danger of being preyed upon by natural enemies! However, they are still full of courage and die generously, just to reproduce and continue to write the bloodline of the family.
Yes, when you see those gliding figures on a spring day, don't think of them as ordinary birds! They are old generals who have gone through many vicissitudes, brave warriors who have gone through hardships. It's amazing that they carry on this spirit year after year, from generation to generation!
There is an even more amazing place: these friends can actually find the direction accurately during the journey, without getting lost! It is said that they rely on the magnetic induction in their bodies, and will use the position of celestial bodies and the magnetic field of nature to identify the direction. This little guy is really a living map!
So, every time you see a flying little swallow, please think twice. They are soaring in the clouds, are you also chasing your dreams? They are bravely following their instincts, are you also cherishing the meaning of life? They are running tirelessly, are you also trying to learn life?
Ah, little swallow, isn't your annual trip to the south interpreting the wisdom of life, let us draw more nutrients from you, so that our life journey can be as insightful and courageous as yours!
Disclaimer: The information in this article comes from the Internet, which is not guaranteed to be completely correct and is for reference only.