燕窝为雨燕科动物金丝燕及同属多种燕类用唾液与少量绒毛混合凝结所筑成的巢窝 ,主产印尼、泰国。我国海南省有产 ,春秋二季采收。第一次春巢称“白燕窝”,第二次新巢在脱毛时称“毛燕窝”,故商品中常见白燕、毛燕、血燕。燕窝 ,《本草纲目》中记载它能“入肺生气 ,入肾滋水 , The bird’s nest is a nest created by the combination of saliva and a small amount of villi, and is mainly produced in Indonesia and Thailand. There is production in Hainan Province in China and harvesting in spring and autumn. The first spring nest called “white bird’s nest” and the second new nest was called “mao bird’s nest” when it was depilated. Therefore, Bai Yan, Mao Yan, and Yan Yan are common in commodities. The bird’s nest, in the “Compendium of Materia Medica,” records that it can “get into the lungs and get angry with the kidneys.”