Why is bird s nest called official swallow and why is it called swallow in Beijing?

Bird's nests are divided into white bird's nest and blood bird's nest.

The white swallow is white, also called the official swallow, because it was eaten by dignitaries and nobles in ancient times, so it is commonly known as the official swallow.

Blood Swallows are red, but they are no longer available in the world.

The official swallow is a kind of official swallow in the bird's nest, also called the white swallow, because the ancient bird's nest was paid tribute to the dignitaries, so it is also known as the official swallow! According to the nesting location of swiftlets, they can be divided into cave swiftlets and house swiftlets. Dong Yan:

It is the nest that swallows make in the wild in caves and coastal cliffs. House swiftlet: from cave swiftlet to house swiftlet, swiftlet is just nesting environment is changing, living habits have not changed, swiftlet is still wild, go out to forage in the early morning, return in the evening, due to the artificial protection of swiftlet to reproduce more, the bird's nest built in time picking, nutrients are not lost.

According to the color, it can be divided into: blood bird's nest, yellow bird's nest, white bird's nest. According to the specifications, it is divided into:

Bird's nest, bird's nest, bird's nest silk, bird's nest cake, bird's nest crush.

Yanjing is the former name of Beijing, which is a municipality directly under the central government of China, Beijing.

As early as the early years of the Western Zhou Dynasty, King Wu of Zhou was called the Duke of Beijing and the nearby areas, called Yan, the capital is in Liulihe Town, Fangshan District, Beijing, and the ruins still exist. He was also named the descendant of the Yellow Emperor in Ji, in the southwest of present-day Beijing. After the Yan Kingdom destroyed the Ji Kingdom, the capital was moved to Ji, collectively known as Yandu or Yanjing.

In the first year of Yongle in the Ming Dynasty (1403), after Emperor Zhu Di Yongle of Ming Dynasty obtained the throne, he changed his fief when he was the king of Yan to Beiping Mansion to Shuntianfu, built Beijing City, and prepared to move the capital here, which was officially named the beginning of returning to Beijing, which has a history of more than 600 years.

1. Different colors:

Guan Yan is a type of bird's nest, and Guan Yan is a white bird's nest; Bird's nest is a large category, and the color of bird's nest is generally white and maroon.

2. Different in condition:

In the past, the official bird's nest was a special offering for dignitaries, so the official bird's nest generally refers to the white bird's nest with better quality and complete shape, which is a small part of the white bird's nest; The quality of bird's nest is different, some are intact and some are damaged, and the quality is not the same.

Bird's nest is a type called"Swiftlets"The bird's nest is made by cementing their feathers and saliva with moss, seaweed and soft plant weaving as a hiding place. Bird's nest can be roughly divided into three types, namely white bird's nest, hairy bird's nest, blood bird's nest, etc. The production areas of bird's nest are mostly in Indonesia, Malaysia, Sandakan, Singapore and Thailand and other Southeast Asian seas and China's South China Sea islands.