Yes, yellow is better than black. Bamboo bird's nest is a fungus with similar efficacy to bird's nest. . The effect is to clear the intestines and moisten the lungs. . . The price depends on the quality of bamboo bird's nest, ranging from a few pieces to dozens. . Mainly produces bamboo sea in Yibin, Sichuan. . They are all for sale near there. However, many bamboo bird's nests on the market are black now, so it is recommended to buy a golden bamboo bird's nest.