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Webster 1913 Edition

Noun.

(Zool.)

Any one of numerous species of small East Indian and Asiatic swifts of the genus

Collocalia

. Some of the species are noted for furnishing the edible bird’s nest. See Illust. under

swiftlet ‎(plural swiftlets)

Any of the various tropical and subtropical birds of the four genera Aerodramus, Hydrochous, Schoutedenapus, and Collocalia in the swift family, many of which can navigate in darkness using echolocation.

bird