Bird's Nest, also known as Swallow Vegetable, is a nest made of mucus and feathers secreted by Jin Siyan's digestive gland, belonging to the same genus as Swallow. Most of them are built on cliffs on the island. They are famous health-care nutriments since ancient times, and have been praised as "precious medicinal materials" and "oriental treasures". Bird's nest is the first of the variegated abalone wings, which is not only a delicacy at high-level banquets, but also a well-known high-level tonic at home and abroad.

Everyone may have heard of bird's nest and eaten/seen it, but what does its maker Jin Siyan look like? Today we will give you a brief introduction.

There are more than 24 species of swallows in the world, and the bird's nest we eat is the nest built by Jin Siyan in Java and Jin Siyan, which is usually called "Jin Siyan". The total length of Jin Siyan is only about 12 cm. Living outside caves, flying over mangroves and rubber forests, feeding on insects.