Rusty-cheeked Hornbill vs Rufous-necked Hornbill

In short

The bill structure is the most reliable field mark: the Rusty-cheeked Hornbill has a more slender and less prominently curved bill compared to the Rufous-necked Hornbill. The Rufous-necked Hornbill also has a more vibrant rufous coloration on the neck and head, which is less pronounced in the Rusty-cheeked Hornbill.

Identification tips

• Bill shape: Look for a more slender and less curved bill in the Rusty-cheeked Hornbill.
• Neck coloration: The Rufous-necked Hornbill has a more vibrant rufous neck.
• Size: The Rufous-necked Hornbill is larger and more robust.
• Habitat: Consider elevation; Rufous-necked is often at higher elevations.

Size

The Rufous-necked Hornbill is generally larger and more robust than the Rusty-cheeked Hornbill.

Plumage

The Rufous-necked Hornbill features a more vivid rufous coloration on the neck and head, whereas the Rusty-cheeked Hornbill has a subtler rusty hue on the cheeks and throat. Both species have similar dark wings and tails.

Behaviour

Both species exhibit similar hornbill behaviors, such as foraging in pairs or small groups and engaging in mutual preening. No significant behavioral differences are noted.

Habitat

Both species inhabit forested areas, but the Rufous-necked Hornbill is more often found in higher elevation forests compared to the Rusty-cheeked Hornbill, which can be found in lower elevation forests.

Voice

Vocalizations are not a primary distinguishing feature, as both species have similar calls typical of hornbills. However, the Rufous-necked Hornbill may have a slightly deeper call.