Bird Guide

Great Hornbill vs Rhinoceros Hornbill

Great Hornbill (Buceros bicornis)

Great Hornbill

Buceros bicornis

Huge2.8 kgForest

The great hornbill is a large bird, 95–130 cm (37–51 in) long, with a 152 cm (60 in) wingspan and a weight of 2 to 4 kg (4.4 to 8.8 lb). The average weight of males is 3 kg (6.6 lb) whereas that of females is 2.59 kg (5.7 lb). It is the heaviest, but not the longest, Asian hornbill. With the separation of the ground hornbills into a separate family, Bucorvidae, the great hornbill reigns as the heaviest of all typical hornbills. Females are smaller than males and have bluish-white instead of red eyes, although the orbital skin is pinkish. Like other hornbills, they have prominent "eyelashes".

ID text from Wikipedia, CC BY-SA 4.0

Photo: Koshy Koshy from Faridabad, Haryana, India · CC BY 2.0
Rhinoceros Hornbill (Buceros rhinoceros)

Rhinoceros Hornbill

Buceros rhinoceros

Huge2.4 kgForest

The rhinoceros hornbill is a large arboreal hornbill, 80 to 90 cm (31–35 in) long. The weight varies by sex, with males weighing around 2,465 to 2,960 g (87.0–104.4 oz) and the females 2,040 to 2,330 g (72–82 oz). The plumage is predominantly black, with white legs and vent and a white tail with a black band. The huge bill and casque are orange and red, the colour coming from preen oil rubbed on from the preen gland above the tail. The eyes of the male are red with black rims, and white with red rims in the female.

ID text from Wikipedia, CC BY-SA 4.0

Sonogram of the Rhinoceros Hornbill
Recorded by Hamas Fathani · Uncertain · Tumbang Diring, Central Kalimantan, Indonesia · CC BY-SA 4.0
Photo: Wich'yanan L · CC BY 4.0

Where you might meet both

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Photos and recordings are credited to their authors under the licence shown. Full profiles: Great Hornbill and Rhinoceros Hornbill.