The Chestnut-backed Grebe in the Field Manual of Chinese Birds No. 1120 (scientific name: Heterophasia annectens) is a small bird of the genus Thrush family, with a body length of 17-19 cm.
The forehead, crown, side of the head, and the back of the neck are black, and the back of the neck has white longitudinal stripes. The dorsal , waist , and tail are covered with chestnut feathers , the tail is convex , black with white end spots , and the wings are black with chestnut transverse spots. The outer margin of the outer feathers is white.
The underparts are white , with brownish-yellow flanks and undertail coverts. The iris is red, the mouth is black, the base of the lower mouth is yellow; the feet are yellow. Its natural habitat is low mountains and foothill evergreen broad-leaved forests below 1500 m above sea level. They often move alone or in pairs, sometimes in small groups of 5-6 birds, especially in autumn and winter.
It feeds mainly on insects such as Lepidoptera, Coleoptera, and Hymenoptera, and also eats some plant fruits, seeds, and plant foods such as mosses. It is found in China, Nepal, Bhutan, Bangladesh, India, Myanmar, Laos, Thailand and Vietnam.
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