金絲燕

1. • Aerodramus, genus of birds that use echolocation, a subset of the Collocaliini tribe (swiflets), two of whose species – Aerodramus fuciphagus and Aerodramus maximus – build nests harvested to make bird's nest soup

Character by character

• 金(jīn)surname Jin
• 絲(sī)silk
• 燕(yàn)swallow