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What is the origin of the name Yuanyang?

Classification: science and engineering disciplines

Problem description:

Who is the most famous Yuanyang in history?

When did you first compare Yuanyang to human beings?

Analysis:

Yuanyang is also known as Wu Renha Qin, official duck, horse bird and Deng Mu bird.

Ecological environment: inhabiting streams, swamps, lakes and other places; Common in swamps surrounded by broad-leaved trees and reeds. During the day, they often wander in the center of the water surface, at night, they often move among broad-leaved trees, and at dawn and dusk, they often move in rice fields and swamps on the shore.

Distribution: It is distributed in eastern Asia, breeds in northeastern China, overwinters in southern China, and can be found in eastern China.

trait

Male mandarin ducks are extremely rich in color, with a rare bright red beak and a bright yellow end. The center of the forehead and the top of the head is emerald green with metallic luster, and the back of the pillow is dark green with purple feathers, forming a distinctive "headdress". The waist of the upper body is deep, the back is brown, and it has a green metallic luster. The most remarkable feature is that the last three levels of flying feathers are specialized, forming a large-scale sail-like structure with a dazzling orange-red color, which is a remarkable feature of Yuanyang.

Female mandarin ducks are far less beautiful than male mandarin ducks, and their whole body color is dark gray, and they don't have the "sail-like three-level flying feathers" that male birds have. The distinguishing features of female birds are bright white eye lines and gray beaks.

Food: This species is omnivorous, mainly plant food, including all kinds of grass seeds, crop seeds, nuts and so on. In addition, animal food also includes ants, locusts, beetles, snails, spiders, small fish and so on.

Replication and protection

The breeding period of this variety is from April to September, and it mostly nests in tree holes of trees near the water. The nest is a dish-shaped nest made of hay at the bottom of the tree hole, and the nest is padded with the feathers of the parent birds. Each brood lays 7- 12 eggs, and the incubation period is 28-29 days.

State Key Protection Grade: Grade II Effective Year: 1989.

China Red Book of Endangered Animals Grade: Vulnerable and Effective Year: 1996

Endangered factors

Illegal hunting: This species is often caught or plucked as prey, and its feathers are used as decorations.

Habitat destruction: this species needs natural tree holes in large trees for reproduction, and the number of trees and tree holes that meet the requirements of Yuanyang breeding and nesting is gradually decreasing, which poses a serious threat to Yuanyang breeding.

Being hunted as a component of traditional Chinese medicine: according to Chinese medicine theory, Yuanyang has the functions of clearing away heat and toxic materials, removing hair and viscera, stopping bleeding and killing insects, and fresh meat or baking.