Sinian crow is a kind of bird, which is mainly distributed in Siberia, the lower reaches of the Yangtze River in Chinese mainland and Heilongjiang, and can often be seen in the reeds beside the river. Sinian finches mainly eat insects on the surface of reeds, mainly eat insects in summer and berries in winter. Aurora is very small, with a body length of only about 20 cm and a weight of 18-48 g. It is lively and active, and its mouth chirps twice. Sinian finches stay or move in the treetops for a long time and rarely go down to the ground to move.