yes, i heard but even more unappatizingly, "something made from regurgatated insect food"..

but i have eaten "birds nest soup" made from a gelatinous fish product. a sea swallow (or some such bird) regurgatates fish, in a a gel form. The gel lines the nest, so when it is off at sea, the fledging birds have food..

foragers come, and collect the nests, and use the gelatin to make a fish broth for soup. yummy! actually, it is!

i am sure some one has a link, or knows a site with all the details..