Red-tailed Burrow young birds
In late summer and early autumn, the earliest migratory birds have just returned from the far north, and the migratory birds that stay in the local area in summer have basically completed brooding, and the parent birds and their offspring have begun to part ways and run their own journeys. At this time, many young birds have grown up and gradually approached sub-adults and adults, because there is such a transition period in the history of life, and what is seen in the wild is very testing of the eyesight and basic skills of bird friends, and the general picture book is often powerless. The main reason for this situation is that we are all halfway out of the house and lack the skills of children. This reminds me of the writer Nabokov. As a well-known writer, Nabokov is also an expert in butterfly taxonomy, especially for the South American gray butterfly, in a very small and narrow field, is a top expert. Born in Russia, Nabokov fled to Europe with his family during the October Revolution and later emigrated to the United States. When butterfly experts in the United States found in the Rocky Mountains, many butterflies that come in the summer do not form communities locally because they are migratory species, because the larvae do not survive the winter. Nabokov knew this phenomenon at first glance, and as a teenager he had noticed that butterflies flew through crimea in April to Petersburg in June. He was the first to point out that this phenomenon in North America is present in Europe, but the butterfly experts in the Americas are not aware of it.
During this period, in the wild, there is a high probability of encountering Berau, and brown-backed Burrow and red-tailed Burrow are the most common. The brown-backed Burao is well identified, it belongs to the pure traveling bird in our country, and its characteristics are just like ma Jingneng's description, carnivorous birds, medium in size, strong and powerful, with a large head and a strong mouth; rough and harsh screams, sometimes imitating the calls of other birds. "Rough and harsh", you will know it as soon as you hear it. Smell the birds, you can get started from Berau. Red-tailed Burrow young birds are also common, but often confusing because of their similarity to the young birds of Tiger Striped Burrow and Bull-headed Burrow. These three species of Berau overlap in North China, and they are all summer migratory birds, and the near-sub-adult birds resemble each other. Recently, some people in the bird watching flock in Beijing often posted the Berautu, expressing confusion, and even some people asked "Is this a red-backed Burao?" Asking such a question shows that birdwatchers identify birds only by characteristics and do not pay attention to whether the bird is distributed locally. In China, red-tailed berlault is only distributed in local areas of Xinjiang and does not belong to the widespread species. This is a typical low-level error of looking at bird maps and not looking at geographic distribution maps.
In recent days in the wild, almost every time I have encountered brown-backed berau and red-tailed burrow. One of the red-tailed Berau young birds caught a big worm, but he couldn't clean it up. Although Berlau is carnivorous and has a sharp beak, a young bird is tender after all, lacking in strength and inexperience, catching a large insect from between the branches and leaves, catching it, not tearing it open, and I watched under the tree, and I was a little anxious for it. I saw that the bird threw it to the left a few times, to the right a few times, put it down, and then pounded it with its beak, but I didn't dare to try to swallow the dates. It lacks grey berlault's unique skill of hanging its prey on a tree thorn and tearing it apart with force. Don't look at this trick less, it works. A unique behavior, unique to the species, is also a great event in evolution. Exclusive secret, not passed on. Certain behaviors can help identify birds, such as the ostentatious behavior of males to females, which is often a unique feature of species. The red-tailed burrow baby bird in front of him, in desperation, grabbed the insect and moved away, not knowing what was going on.
In a different place, I heard a brown-backed Burrow pulling at the throat, and turned my head to see that it was standing on the tall branch of a willow tree. Brown-backed Berau is not too afraid of people, but always keeps an appropriate distance from you. Such a distance is called a warning distance or a safe distance. Each bird has its own visual inspection and judgment, which is an innate instinct. Some chicks, who do not yet have this ability, are sometimes tempted to death. Experience is accumulated step by step, and at this point, man is not much smarter than a bird. The difference between birds and people is minimal, and the saying goes that people die for money and birds die for eating. Recently seen in a bird watching group, some people found that the usually difficult to see ant birds, appeared in the riverside grass, the place of newly cut grass, the insects were disturbed, it seems that the "insect mouth density" suddenly became larger, attracting a young bird or sub-adult bird, dozens of people around the shooting, even without fear. Some people are happy, some people are worried, for this newborn calf is not afraid of the tiger bird, so countless pinches of sweat in their hearts. Will it be harmed? Such a tragedy is not nothing, the famous cannabis flounder in Beijing's Aosen Park, did not die in this way, after the bird shooter left, he was killed by a bullet from the slingshot.
Brown-backed Burrow
The growth of a bird is very difficult, and the survival rate of young birds is at the expense of the premature death of a large number of individuals. When bird watching becomes a fashion, people involved in it, please do not forget that keeping distance from the undisturbed, respect for birds, is a basic rule of bird watching. Especially for migratory birds, it is very important. Thousands of miles, moments of stopping, they must seize the time to replenish energy. Bird watching is not only to see, but also to shoot, but also to appreciate. Liking bird watching, longing for bird watching, is an instinctive desire of people based on aesthetics. No one told a child that the bird was cute, but he saw it as he was and instinctively liked it. Why? Aesthetics is an instinctive desire. Human evolution to this day has accumulated a rich foundation. Beauty is everywhere, the beauty of birds lies in appreciation, from the surface to the inside, from form to behavior, that is nature showing its mystery. In the face of all this, man should respect himself, in addition to maintaining the desire to know (inquire). Shoot birds, people are happy in it, birds are not happy, must be taken care of. Faced with a new bird species, unfamiliar, want to know, very normal, but desire needs to be restrained. Bird watching with restraint must be remembered from the moment you step into this threshold.