First, there is a bird called Jin Siyan in Malaysia. Its weight is less than15g, so small that it can't even lift the leaves on the ground, so their nests are all made of their own salivary leaves. They are caught in a dark cave on the vertical cliff, and their lives will be in great danger when picking. So people built artificial caves to lure wild Jin Siyan to nest. This not only reduces the danger of bird's nest garden, but also has more than 60,000 bird's nests in Malaysia after 20 years' operation. It provides dry accommodation for these Jin Siyan, which not only avoids the danger of predators, but also increases the export value of bird's nests in Malaysia by/kloc-0.00 billion US dollars every year.

Second, the factory will use a high-tech stereo to play Jin Siyan's courtship calls to attract them to nest. Jin Siyan has only one partner in his life. Once love blossoms and bears fruit, they will nest in the bird's nest. Most swifts use saliva to bond their nests, and Jin Siyan's nests are all made of this sticky substance. They will pat stones with their tongues and build a low wall composed of solidified saliva. Mucins and glycoproteins in saliva will harden it into a cement-like base. After the pedestal is built, it will take another month to build a nest that can accommodate two eggs. In this bird's nest, there are about 5,000 pairs of Jin Siyan, and some swallows can breed three times a year.

Third, after the chicks in the nest leave the nest, the workers will harvest these bird's nests to make room for the construction of the next bird's nest. These bird's nests can be sold for 60 thousand yuan per kilogram, but at least 130 bird's nests are needed to make up a kilogram. To ensure that the chicks have left the nest, workers will use a spatula with a mirror to remove the bird's nest from the beam. Raising Jin Siyan carefully like this can protect this amazing bird. The bird's nest just picked can't be used directly, because it is full of swallows' feathers and dirt, so it needs to be sent to a nearby factory.

Fourth, workers will carefully brush off the black spots in the bird's nest with a brush, and then pick out the feathers on the bird's nest with tweezers. It takes 50 minutes to clean a bird's nest. In order to avoid moldy bird's nest, workers will make them into exhibition with special tools and put them into a 30-degree oven to dry. After 20 hours, the thoroughly dried bird's nest can be sent to the packaging department. This factory will package 400 bird's nests every day, and the packaged bird's nest can sell for 2000 yuan per box. Finally, these packaged bird's nests will be transported to all parts of Asia to make delicious bird's nest soup.