swiftlets build nests out of their sticky saliva on cave walls and cliff sides, where they raise their young. It's the high cost of these saliva nests that makes bird's nest soup so expensive.

swiftlets build nests out of their sticky saliva on cave walls and cliff sides, where they raise their young. It's the high cost of these saliva nests that makes bird's nest soup so expensive.

In the Philippines, collecting the main ingredient for bird's nest soup, swiftlet nests, is one of the most dangerous jobs in Asia. More from Risky Business In the Philippines, collecting the main ...

But did you know that a bird’s nest is also edible? Bird’s Nest Soup made from the nests of the Swiftlet, a small bird found in regions like China, Taiwan, Hong Kong and Singapore has gained ...

The officers burnt the pile of swallows’ nests confiscated mainly ... twigs are held together by dried swiftlet saliva, which is made into a gelatinous soup credited in China with everything ...