[theold]

First, the roof of the palace in the Royal Palace is covered with seamless lapis lazuli tiles without gaps. 

The lapis lazuli tile uses raw materials with many mineral components, after the process of refining, crushing, pressing, shaping, and finally firing in a high-temperature furnace, this type of tile has many advantages. 

For example, the fineness and smoothness are high, making it impossible for birds to land on the roof.

According to the concept of the ancients, yellow glazed tiles and red walls are symbols of the royal family. This yellow color also makes the bird blind and reduces the ability to see. Therefore, they will not swoop down on the roof.

Second, the roof tiles of the palaces in the Forbidden City have a steep slope. Add to the smoothness of the lapis lazuli tile, the bird perched on it could barely stand.

In fact, in China, there is an architectural style called "Horror of the top", which means that birds cannot perch on the top. This design mainly focuses on the slope, the width of each brick is larger than the distance between the toes of all birds, making it impossible for them to sit for too long or nest.

Likewise, if a seed falls on the roof of the Forbidden City, it will either roll down very quickly thanks to the tile, or be washed away by heavy rain. Because of that, they do not have the opportunity to grow and develop.

Finally, the ancient Chinese used a special coating on the surface of the lapis lazuli tiles, birds hate this smell so most do not choose the tile roof in the Palace as a place to park or stop.

Moreover, the Palace is located in the bustling city of Beijing, of course this is not a place where wildlife in general and birds in particular, reside.

https://tintuc.vn/vi-sao-mai-cung-dien-t...ost2288287

[Alice Alicia]

No wonder it is forbidden.

[K88 shu shu]

becos birds don't lay eggs there.

[red3]

Even bird flying past let loose their droppings also bo la sah