Black Hornbill
Anthracoceros malayanus
The male has a yellowish bill while the female has a dark grey bill.
ID text from Wikipedia, CC BY-SA 4.0
Oriental Pied Hornbill
Anthracoceros albirostris
The oriental pied hornbill is a medium size frugivore with a head-to-tail length of 55–60 cm (22–24 in) and a wingspan of 23–36 cm (9.1–14.2 in). The bill measures 19 cm (7.5 in) for males and 16 cm (6.3 in) for females. It can weigh between 600 and 1,050 g (21 and 37 oz), averaging 900 g (32 oz) for males and 875 g (30.9 oz) for females. The plumage of the head, neck, back, wings and upper breast is black with a slight green sheen. The tail is black with white tips on all the feathers except the central feathers (rectories).
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Black Hornbill and Oriental Pied Hornbill.