The copper blue grebe (scientific name: Eumyias thalassinus) is a small bird with a body length of 13 to 16 cm. The male is copper-blue throughout, especially the forehead, head, throat, and chest are brighter, and the frontal base and eyes are black first, and extend to the under eyes and chin. The surfaces of both wings and tail are the same color or glow greenish blue, the covered and invisible wings and lateral tail feathers are brown or dark brown, and the outer feather margins are dark blue. The undertail coverts have white end spots. Females and males are roughly similar, but have a darker body color and are less colorful than males. In particular, the lower body is mostly grayish blue and less copper blue, and the eyes and chin are white with gray spots. The iris is brown or chestnut brown, the mouth is black, and the feet are black.
China is mainly distributed in the Qinling Mountains in southern Shaanxi, Maowen in northern Sichuan, Wanxian in the east, Xiushan in the southeast, Youyang, Nanchuan, Pingshan in the south, LeiBo, Meigu, Ebian, Xichang, Huidong, Muli, Yanyuan, Kangding in the west, Luding, asbestos, Hanyuan, Baoxing in the middle, Tianquan, Emei, Guanxian, Chengdu in the north, Xishui in the north of Guizhou, Zunyi, Suiyang, Jiangkou in the northeast, Guiyang in the center, Guiding, Huishui, Duyun, Longli, Leishan in the southeast, Rongjiang in the southeast, Sandu, Pingtang in the south, Luodian, Wangmo, Chengheng, Xingyi in the southwest, Anlong, Xingren, Gongshan, Weixi, Tengchong, Yingjiang, Luxi, Yongping, Gengma, Baoshan, Longling, Shuangjiang, Yongde, Yuanyuan, Southwest Ximeng, Xishuangbanna, Southeast Mengzi, Xishu domain, Wenshan, Maguan, northeast Yongshan, central Kunming, Fumin, Jingdong, southern Tibet Nielamu, Yigong, Chuna, Chayu, Motuo, Lalong, Hubei, Hunan, Guangxi, Guangdong and Fujian.
It mainly inhabits montane forests and forest margins such as evergreen broad-leaved forests, mixed coniferous and broad-leaved forests and coniferous forests at an altitude of 900 to 3700 meters, and also descends to secondary forests, plantations, sparse forests and shrubs at the foot of mountains and plains in spring, autumn and winter, orchards, farmland edges and small trees and trees near residences. It is often active alone or in pairs, mostly in the canopy of tall trees, but also in understory shrubs and small trees, but rarely down to the ground. Bold, not afraid of people, frequently flying into the air to prey on flying insects, but also like a to feed among the leaves. The song is pleasant, and the morning and dusk are endless. Diet: Mainly feeds on insects and insect larvae such as Lepidoptera, Coleoptera, orthoptera, and also eats some plant fruits and seeds. Migration: The copper blue wren is a resident bird in Yunnan, Fujian, Hong Kong and other places in China, a summer migratory bird in other areas, and it is also seen in Guizhou, Sichuan and other places in early March, and perhaps also a resident bird in Sichuan and Guizhou.
The breeding season is between May and July, usually in the shore, on the rock slope and in the holes or between the stone crevices under the roots, but also in the tree holes and caves in the walls of abandoned houses. The nest is cup-shaped and consists mainly of green moss, sometimes doped with fine roots and grass stems, and with finer whisker roots and mosses in the inner pad. Each clutch lays 3 to 5 eggs, usually 4, white or pinkish white, some with dark spots at the blunt end