Abyssinian Ground Hornbill vs Southern Ground 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

Southern Ground Hornbill

Bucorvus leadbeateri

Huge3.7 kgGrassland

This is a large bird, at 90 to 129 cm (2 ft 11 in to 4 ft 3 in) long. Females weigh 2.2 to 4.6 kilograms (4.9 to 10.1 lb), while the larger males weigh 3.5 to 6.2 kilograms (7.7 to 13.7 lb). The average weight of eight females was 3.34 kg (7.4 lb) whilst that of eight males was 4.2 kg (9.3 lb); thus they average around 35% percent heavier than any Asian hornbill species. Wingspan is from 1.2 to 1.8 m (3 ft 11 in to 5 ft 11 in). The wing chord is 49.5 to 61.8 cm (19.5 to 24.3 in), the tail from 29 to 36 cm (11 to 14 in), the tarsus from 13 to 15.5 cm (5.1 to 6.1 in) and the culmen from 16.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Dave · CC BY 2.0

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