Additionally, the Samar Hornbill is often included as a subspecies of the Mindanao Hornbill.
Samar | Walden's Hornbill | Visayan Hornbill | Rhinoceros Hornbill | Guiuan, Eastern Samar | Yellow-casqued Hornbill | Hornbill | Sulu Hornbill | Samar (island) | Llorente, Eastern Samar | hornbill | Hemprich's Hornbill | Writhed Hornbill | Samar Mubarakmand | Samar Hornbill | Marabut, Samar | Legislative districts of Northern Samar | Indian Grey Hornbill ''Ocyceros birostris | Eastern Samar | Abyssinian Ground Hornbill |