Alet bird is one of the bird species that have economic value, especially the nest that is produced from saliva. You must have often heard the term swiftlet nest that is often used as medicine or food. Swallow nest is a commodity that is often exported to developed countries, especially China. The form of nests made by swallow is actually ordinary, similar to the nest in general. But because it is made from saliva, the swallow nest can harden and resemble a bowl. If it is sold in the global market the price could jump up significantly. Swiftlet nest is famous for expensive, swallow nest prices per kilo can reach tens of millions of rupiah.
