What kind of bird is this? Please elaborate.

Aegithalos caudatus is a passerine in paridae. The total length of the family Polypodiaceae is about 14cm. The top of the head is black with light vertical stripes, the head and neck are grape brown (the head of the named subspecies is pure white), the back is gray with a long tail, the black with white edges, the lower body is light grape red, and there are silver-gray spots in the center of the throat. Habitat in mountain coniferous forests or coniferous and broad-leaved mixed forests, forming small groups to large groups outside the breeding period, usually at the top of tree crowns or shrubs, preying on airborne insects. Breeding began in March and April, and many nests were built between the branches of larch. Each nest lays 6-8 eggs or 9- 10 eggs, and the white is decorated with reddish-brown spots, especially the blunt end. Female birds hatch eggs. After the chicks leave the nest, they are led by the parent birds in the nest area many times before leaving the nest area with the parent birds. It is a common resident bird in Northeast China, North China, Central China, East China and Southwest China. This species has been listed in the List of Terrestrial Wild Animals under National Key Protection or with Important Economic and Scientific Research Value issued by the State Forestry Administration in August 2000 1.