Mr. Vo Thai Lam - CEO of Yen viet Company - one of the pioneers in building up the swallow Yến sào very successful said that he worked in Sport field for a while then on an occasion of attending "Seminar of sport nutrient drink" in Malaysia, he was invited to use a kind of nutritional drink from swallow bird's nest, which known to have a good health. At that time, he still thought that swallow bird only live in swallow's islands. However, after finding out, he realized that these products processed from bird's nest in house/farm. Since then, an idea to attract swallows bird to live in farm arisen in his mind. But it was not specific until he read news in Tuoi Tre newspaper about an appearance of more than 100 swallow to yen in the Theatre of Ninh Thuan in the centre of Phan Rang (Tuoi Tre 25-3-2004). This seemed to motivate Mr. Lam to find out and decide to implement his idea.