The drongos are a family, Dicruridae, of passerine birds of the Old World tropics.
I often find the best way to photograph them is when they are eating.... This is the hair crested drongo.
I have also heard the the word drongo used as a mild form of insult meaning "idiot", and is in particular use by Australians. This may be due to the strange chattering and cackling of this bird, but I have also heard that drongo derives from an Australian racehorse of the same name (apparently after the spangled drongo, Dicrurus bracteatus) in the 1920s that never won despite many places.
Anyway....here are some more pics
And here is a black drongo that I shot at Mai Po the other week.