Ruddy Cuckoo-Dove vs Barusan Cuckoo-Dove

The Ruddy Cuckoo-Dove and Barusan Cuckoo-Dove are closely related species with subtle differences. The Ruddy Cuckoo-Dove is slightly larger and has a distinctive red-brown fringe on its first primary feather. In contrast, the Barusan Cuckoo-Dove is smaller, with darker underparts and a less contrasting chin.

1. Size: Look for the slightly larger size of the Ruddy Cuckoo-Dove. 2. Wing Fringe: Check for the red-brown fringe on the first primary of the Ruddy Cuckoo-Dove. 3. Underparts: Note the darker underparts and less contrasting chin of the Barusan Cuckoo-Dove. 4. Vocalization: Listen for the Barusan Cuckoo-Dove's 'ho-ho-hoooo' call.

The Ruddy Cuckoo-Dove is slightly larger, with a wing length of 204 mm compared to the Barusan Cuckoo-Dove's 172 mm.

The Ruddy Cuckoo-Dove has a red-brown fringe on the inner web of its first primary feather, whereas the Barusan Cuckoo-Dove has darker wings and underparts, with a less contrasting chin.

Both species are found in wooded habitats, but the Barusan Cuckoo-Dove is more dependent on good forest conditions.

The Barusan Cuckoo-Dove has a distinctive call described as a far-carrying 'ho-ho-hoooo', while there is no specific vocalization detail available for the Ruddy Cuckoo-Dove.