Source : Webster's Revised Unabridged Dictionary (1913)

Drongo \Dron"go\, n.; pl. {Drongos}. (Zo["o]l.)
   A passerine bird of the family {Dicrurid[ae]}. They are
   usually black with a deeply forked tail. They are natives of
   Asia, Africa, and Australia; -- called also {drongo shrikes}.