Eye of the Secret Realm · A friend of human beings ｜ Black Tail: Wearing a retro Yan Tail

Editor's note:

The wild boar goes down the mountain! "Monkey Paper" to my balcony! The news of wild animals entering the city frequently shows social media. In fact, there are many local wild animals around us, and they are neighbors with us, but we rarely understand them. Understanding, friendly, and accompanying, everything can be raised and raised. Xinhua Daily · Jiaojiao Point Unite Jiangsu Wildlife Protection Station, Jiangsu Forestry Science Research Institute, Nanjing Institute of Aquatic Sciences, Nanjing Hongshan Forest Zoo, etc. launched the "Eye of the Secret Realm · Friends of Humanity" calendar column to take you together Through the perspective of infrared cameras, animal observer, etc., pay attention to the familiar and mysterious "animal neighbors". Biological diversity is the foundation and vitality of human homes. Every solar term, we will also invite solar terms to carry out the special selection and broadcast on the day. Today, let's get to know the black curl tail together.

Deep fork -shaped tail feathers

The black curl tail is black, and many people mistakenly believe that they are small crows. In fact, the two can not hit each other. The black curl tail belongs to the bird -shaped tailbird. If you look closely, you can find that there is a little blue -green metal luster in their black feathers.

Their tail feathers are very recognizable and have a long deep fork -shaped tail feathers. The tail feathers change from the center to both sides. The outermost tail feathers are bent outward and slightly tilted upwards.

In addition to the tail feathers, there are several silk feathers on the top of the black roll tail, which increases their recognition one point, but the silk feathers are not obvious most of the time.

The females of the black roll tail are similar to the male bird, but the young birds are not all black. The abdomen is white and has black scales.

"Tree Guard"

In Jiangsu, the black curl tail belongs to the common summer migratory bird. They are widely distributed in eastern and southern Asia, and are common summer migratory birds in large -scale regions in North China and south of North China. Staying birds and winter migratory birds.

The black curl tail is a low -altitude tree -like bird. It is often standing on the top of the canopy and the top of the shrub. It also often flew down and passed through the shrub or grass to prey in insects. The shape is all showing.

Black -tailed tails are generally single or pairs of activities. The non -breeding season will also gather small groups. You can see them in the open forest land, forest margin and wetlands of the plains and hills. You can also find it in the village and urban parks.

For humans, black roll tails are a well -deserved "tree guards". All kinds of bugs that destroy trees and crops are on the recipes of black curls, and they eat amazing. They love to find pests in the woods.

Small figure can attack raptors

The black curly tail will build exquisite bowl -shaped woven nests on the fine branches extended by the crown. The nest is generally dead grass. Each layer is 2 to 4 eggs, and new nests are breed every year.

The black curl tail has a strong field, especially in the reproduction period. If there are raptors or crowbirds invading the nest area of ​​the black curls, they will be attacked by the black curl tail and fearlessness until the invaders finally leave.

Although the scale is small, it can press a pound. The black roll tail body is about 28 cm long. Even if the invader is a snake carving from 55 cm to 73 cm in length, the black roll tail is not afraid, and it will take advantage of the snake carving warehouse to escape.

Writing: Liu Chun

Beautiful editor: Cao Jiarui

Picture: Zou Weiming

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