Business Insider4y
Why bird's nest soup is so expensive
Three times a year, 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 ...
Business Insider India5y
The swiftlet farming industry has exploded, as more people eat bird's nest soup for supposed health benefits
Three times a year, 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 ...