Greater Coucal vs Chestnut-winged Cuckoo

The Greater Coucal and Chestnut-winged Cuckoo are both large, striking cuckoos but differ notably in plumage and behavior. The Greater Coucal is more robust with a distinctive glossy black body and chestnut wings, while the Chestnut-winged Cuckoo has a more slender build with a striking crest and contrasting black and white head pattern.

1. Look for the Greater Coucal's glossy black body and chestnut wings; 2. Note the Chestnut-winged Cuckoo's crest and contrasting head pattern; 3. Observe behavior: Greater Coucal is more ground-dwelling; 4. Listen for the Greater Coucal's deep calls.

The Greater Coucal is generally larger and bulkier compared to the more slender Chestnut-winged Cuckoo.

Greater Coucal has a glossy black body with rich chestnut wings, whereas the Chestnut-winged Cuckoo features a prominent crest, black and white head, and chestnut wings with a more contrasting appearance.

Greater Coucal is often seen foraging on the ground or in dense vegetation, while the Chestnut-winged Cuckoo is more arboreal and often perches conspicuously.

Greater Coucal prefers dense undergrowth and scrubby areas, while the Chestnut-winged Cuckoo is more often found in open woodlands and forest edges.

Greater Coucal has a deep, resonant 'coop-coop-coop' call, whereas the Chestnut-winged Cuckoo's call is less documented but typically includes a series of whistles.