A serving of heartlessness The most popular nests for eating are contributed by four varieties of swiftlets living in seaside cliffs and caves throughout the countries of Indonesia, Thailand, Malaysia, and Vietnam.
成為人類席上珍饈的燕窩，主要由四種分佈於印尼、泰國、馬來西亞、越南等東南海岸岩壁與洞穴的金絲燕所貢獻。