Black Drongo Identification Guide

Key Field Marks

• Medium-sized, entirely glossy black passerine with a slight bluish or greenish sheen in good light.
• Tail is long and deeply forked, splaying into a distinctive "fish-tail" shape, often flicked and fanned.
• Eyes are dark red; bill is stout, black, and slightly hooked at the tip.
• Sits upright and alert on wires, fence posts, and bare treetops, frequently sallying out after flying insects.
• Juveniles are duller sooty-black with faint white barring or mottling on the belly.

Separating It From Similar Species

• Ashy Drongo is overall grey rather than jet black, with a less deeply forked tail and typically found more in wooded habitat.
• Spangled Drongo and other Asian drongos show more obvious sheen, ornate tail-tip "rackets," or crests that Black Drongo lacks — Black Drongo's tail fork is simple and evenly forked without racket tips.
• Its aggressive habit of perching conspicuously in open country and mobbing crows, raptors, and even people near its nest is a useful behavioral clue distinguishing it from shyer drongo species.

Where and When to See It

• Common and widespread resident across South and Southeast Asia, from Iran and the Indian subcontinent east to China and Indonesia.
• Favors open country: farmland, grassland, scrub, and villages, often perching on wires and fence lines overlooking short vegetation.
• Frequently seen near grazing cattle or water buffalo, catching insects flushed by the animals' movement.
• Largely resident, though some northern populations shift south in winter.

Voice and Behavior

• Vocal and varied, producing harsh metallic notes, chattering, and whistles, and is a skilled mimic of other birds' calls.
• Renowned for fearless mobbing of crows, kites, and other large birds that stray near its nest or territory, often riding on the backs of larger birds it is chasing.
• Feeds mainly on flying insects caught in aerial sallies from an exposed perch.