The Latin scientific name Charadrius australis Peltohyas australis has the longest toe in the middle, with webbed or not webbed intertold, and small or degenerate posterior toes. The wing tip is long, the first primary flight feather is degenerate, narrow, very short, and the second primary flight feather is longer or equally long than the third. Level 3 feather specialty. The caudal shape is short and rounded, and the tail feathers are 12 pieces.
The western, northeastern and northern China of Xinjiang is a tourist bird; in Jiangsu and the southeast coast
It is a migratory bird with extremely strong flight ability. They usually migrate along coastlines and rivers. The living environment is mostly related to wetlands and cannot be separated from water. It inhabits wetlands such as coastal areas, islands, river beaches, lakes, ponds, swamps, paddy fields, and salt lakes.