Chestnut-winged Cuckoo vs Asian Koel

The Chestnut-winged Cuckoo and the Asian Koel can be distinguished primarily by their plumage: the Chestnut-winged Cuckoo has striking chestnut wings and a prominent crest, while the Asian Koel is mostly glossy black in males and brown with white streaks in females. Both species are cuckoos, but their vocalizations and habitats also differ significantly.

Look for the chestnut wings and crest of the Chestnut-winged Cuckoo. Note the glossy black plumage of the male Asian Koel and the streaked brown plumage of the female. Listen for the loud calls of the Asian Koel, especially in urban areas. Consider the habitat: forest edges for the cuckoo, urban and garden areas for the koel.

Both species are similar in size, though the Asian Koel is generally slightly larger.

The Chestnut-winged Cuckoo has distinctive chestnut wings and a prominent crest. In contrast, the Asian Koel male is glossy black with a pale bill, while the female is brown with white streaks.

The Chestnut-winged Cuckoo is often seen alone or in pairs, while the Asian Koel is more likely to be found in trees and shrubs, sometimes in more social settings.

The Chestnut-winged Cuckoo prefers forest edges and open woodlands, whereas the Asian Koel is often found in gardens, plantations, and urban areas.

The Asian Koel is known for its loud, repetitive calls, especially during the breeding season. The Chestnut-winged Cuckoo's calls are less well-documented but are generally quieter.