Square-tailed Drongo-Cuckoo vs Black Drongo

In short

The Square-tailed Drongo-Cuckoo and the Black Drongo can be confused due to their similar dark plumage, but they belong to different families and exhibit distinct features. The most reliable field mark is the tail shape: the Square-tailed Drongo-Cuckoo has a squared tail, while the Black Drongo has a deeply forked tail. Both species are found in similar habitats, but their vocalizations and behaviors differ.

Identification tips

• Tail shape: Look for the squared tail of the Square-tailed Drongo-Cuckoo versus the forked tail of the Black Drongo.
• Behavior: Note the aggressive behavior of the Black Drongo compared to the more secretive nature of the Square-tailed Drongo-Cuckoo.
• Vocalization: Listen for the complex song of the Black Drongo, which often includes mimicry, versus the simpler calls of the Square-tailed Drongo-Cuckoo.
• Habitat preference: Consider the likelihood of seeing a Black Drongo in urban or agricultural areas, where the Square-tailed Drongo-Cuckoo is less common.

Size

Both species are similar in size, but the Black Drongo is generally more robust.

Plumage

Both have glossy black plumage. The Square-tailed Drongo-Cuckoo may appear slightly more iridescent, but this is not a reliable field mark.

Behaviour

The Black Drongo is more aggressive and often seen chasing other birds, while the Square-tailed Drongo-Cuckoo is more secretive and solitary.

Habitat

Both species can be found in open woodlands and forest edges, but the Black Drongo is more adaptable to urban and agricultural areas.

Voice

The Black Drongo has a varied and complex song, often mimicking other species, while the Square-tailed Drongo-Cuckoo has a simpler, repetitive call.