Calao d'Afrique du Sud vs Calao à joues argent

The Southern Red-billed Hornbill and Silvery-cheeked Hornbill are easily distinguished by their bills and size. The Southern Red-billed Hornbill has a distinct red bill, while the Silvery-cheeked Hornbill features a large, silvery casque on its bill.

Look for the red bill of the Southern Red-billed Hornbill versus the silvery casque on the bill of the Silvery-cheeked Hornbill. The size difference is also a reliable indicator, with the Silvery-cheeked Hornbill being much larger.

The Silvery-cheeked Hornbill is significantly larger than the Southern Red-billed Hornbill.

The Southern Red-billed Hornbill has a predominantly white and brown plumage, whereas the Silvery-cheeked Hornbill has a darker, more contrasting plumage with silvery cheeks.