The yellow-bellied nectar bird is a bird of the genus Nectar in the family Sunbird family. Weight 5-9 g, body length 97-115 mm. It is a small nectar bird.
The upper body of the yellow-bellied nectar bird is olive-green during the breeding season, sometimes the forehead is blue-green with a metallic luster, the waist is stained green, and the wings are dark brown, but its surface is similar to the upper body. The upper tail feathers are slightly darker, the tail feathers are black and brown, the outer 4 pairs of tail feathers are white at the first end, the outer tail feathers are white and larger, and the outer pair of tail feathers on the outer side are half white. The chin, throat, and upper thorax are purple-black with a glowing purple on the periphery, blue-green and blue metallic luster on the sides and back, a chestnut-red or brownish-red transverse band between the upper and lower thoraxes, suffixed with broad and incomplete black spots, bright yellow tufts on the sides of the chest, and pale yellow or creamy yellow on the rest of the lower body. The non-breeding feathers are similar to those of the female , with a golden yellow chin and throat , a broad black longitudinal stripe in the center with a slight purple luster , and the rest of the underparts pale yellow.
Females with yellow-bellied nectars have light brown upperparts, green waists, and a short, inconspicuous yellow brow stripe above their eyes. The cheeks, chin, and throat are yellow or dirty yellow, with a lighter center of the throat and a male-like rest.
The yellow-bellied nectar bird has a brown iris and a black beak and feet.
Yellow-bellied nectar birds feed mainly on nectar, but also eat some other foods such as berries and insects. Propagation uses bark, grass, leaves, etc. to build a long hanging nest with side openings, and lays 2-3 eggs.
The yellow-bellied nectar bird has a monotonous and sharp call, sometimes producing a crisp and rhythmic chirping call and a short tone ending with a clear vibrato, especially during breeding.
Yellow-bellied nectar birds are mostly found in open mountain forests below 700 meters above sea level. Sexual noise, small flocks jumping between the flowers, and the males sometimes chase each other back and forth, often visiting the forest gardens, coastal scrub and mangroves.
The yellow-bellied nectar bird is distributed in Yunnan, Guangxi, Guangdong, Hainan and other places in China.
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