The two-horned hornbill (scientific name: buceros bicornis) is a large bird with a body length of 119–128 cm, a wingspan of 146–160 cm and a weight of 2.15–4 kg. Males are larger. The back of the head and neck are white, and the rest of the upper body is black. The tail is white with broad black sub-terminal spots. The large wing coverts have white end spots, and the primary coverts are white, forming distinct white wing spots on the wings, which are extremely prominent on the black wings. The lower body thorax is black and the rest of the lower body is white. The mouth and helmet process are larger, the base is black, the end of the mouth and the top of the helmet are orange-red, the side of the mouth is orange-yellow, and the lower mouth is milky white.
China is only found in Xishuangbanna, southern Yunnan
Most colonies of hornbills feed in one location and do not change to a new location until they run out of food. They also often fly in groups, fishing back and forth one after the other. When flying, the speed is not fast, the posture is also very peculiar, the head and neck are very straight, the wings are flattened, after making several up and down agitations, they will move forward by gliding, and then agitate their wings a few times, and so on repeatedly, as if shaking. Because the underwing coverts fail to cover the base of the feathers, there is a loud noise between the feathers when flying.
The breeding season of the two-horned hornbill is from March to June every year, and the nest is mostly made by selecting natural tree holes in tall trees such as the Linden tree in the forest, processing and trimming it. Each clutch usually lays 2 eggs, a few 1 or 3.