The white-bellied drongo (Dicrurus caerulescens), found across the Indian Subcontinent, has a white belly and vent. Most drongos are black - there three exceptions are the white bellied, the ashy, and the Philippines sub species Balicassiao mirabilis. A resident breeder in India and Sri Lanka, the insectivorous white-bellied is usually found in deciduous and bamboo forests.