Asian Emerald Cuckoo vs Horsfield's Bronze-Cuckoo

In short

The Asian Emerald Cuckoo and Horsfield's Bronze-Cuckoo can be distinguished by size and plumage details. The Asian Emerald Cuckoo is larger and has a more vibrant green plumage, while Horsfield's Bronze-Cuckoo is smaller with a more muted bronze-green coloration. Both species can be found in overlapping habitats, but their calls differ significantly.

Identification tips

1. Size: Look for the larger size of the Asian Emerald Cuckoo. 2. Plumage: Note the vibrant green of the Asian Emerald Cuckoo versus the bronze-green of Horsfield's. 3. Eyebrow: Horsfield's has a clear white eyebrow. 4. Vocalization: Listen for the repetitive whistle of the Asian Emerald Cuckoo compared to the descending whistles of Horsfield's. 5. Habitat: Consider the habitat, with Asian Emerald Cuckoo preferring denser forests.

Size

The Asian Emerald Cuckoo is larger than Horsfield's Bronze-Cuckoo.

Plumage

The Asian Emerald Cuckoo has a striking, vibrant green plumage with a white belly and throat, often showing a metallic sheen. In contrast, Horsfield's Bronze-Cuckoo has a more subdued bronze-green upperpart with a distinctive white eyebrow and a barred underpart.

Behaviour

Both species are brood parasites, but their behavior in the field is similar, often seen perched quietly or flying rapidly between trees.

Habitat

Both species inhabit forests and woodland areas, but the Asian Emerald Cuckoo is more often found in dense, humid forests, while Horsfield's Bronze-Cuckoo can also be seen in drier, open woodlands.

Voice

The calls of these two species are quite different. The Asian Emerald Cuckoo has a distinctive, repetitive whistle, while Horsfield's Bronze-Cuckoo produces a series of descending whistles.