A genus of swallows found in Asia, Europe, and Africa, including the house martin; also called swiftlets.
From Greek 'delichos' (long-lasting) and 'chon' (possibly referring to the bird's tail or flight pattern). This is a scientific taxonomy name used in ornithology (bird study).
The 'delichon' swallows are amazing builders—they make nests out of mud and saliva stuck to the sides of buildings, and some people harvest these nests (called bird's nest soup) as a delicacy!
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