Abyssinian Ground Hornbill vs Rufous-necked Hornbill

Abyssinian Ground Hornbill

Bucorvus abyssinicus

Huge4.0 kgGrassland

Abyssinian ground hornbill is a large, terrestrial hornbill with black body feathers and white primary feathers which are visible in flight. The adult male has a patch of bare blue skin around the eye and an inflatable patch of bare skin on the neck and throat which is red, apart from the upper throat which is blue. The bill is long and black except for a reddish patch at the base of the mandible. On top of the bill there is a short open-ended black casque. The female is similar but smaller with any bare skin being wholly dark blue. Voice: A deep booming uh-uh, uh-uh-uh which is far carrying and is normally made at dawn from either a perch or from the ground. The male and female sing in duets.

ID text from Wikipedia, CC BY-SA 4.0

Photo: The Smithsonian Institution · CC0

Rufous-necked Hornbill

Aceros nipalensis

Huge2.4 kgForest

The head, neck, and lower body of the male are coloured rufous, with deeper colouration on the flanks and abdomen. The middle primaries and the lower half of the tail are tipped white. The rest of the hornbill's plumage is a glossy dark-green and black. The lower tail-covert feathers are coloured chestnut mixed with black. The female is black, except for the end-portion of her tail and the tips of the middle primaries, which are white. Juvenile hornbills resemble adults of the same sex, but lack the ridges at the base of the upper beak.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Shiv's fotografia · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Abyssinian Ground Hornbill and Rufous-necked Hornbill.