The black drongo ( Dicrurus macrocercus ) is a small bird (wing length 135-150 mm), it has black plumage with a faint blue-green sheen. The tail of the drongo is long (130-150 mm) and deeply cut. The black drongo inhabits wooded areas in both natural and cultural landscapes. It is distributed in South and East Asia to the south to the islands of Ceylon, Java, and Bali. In Russia, the drongo very rarely flies into Primorye in the Far East. In India, however, this is a very common bird, which often accompanies herds of cattle, looking for insects near animals or right on their backs.