Many birds of the Chinese sandpiper family have a particularly similar appearance but are well classified by ornithologists

There are about 83 species in 23 genera and 83 species of birds in the sandpiper family (scientific name: Scolopacidae). There are 43 species in 14 genera in China. Medium or small waders. The body color is dull and striped, the mouth is diverse, generally long and pointed, individually curved up or down, suitable for gouge mud, in search of food; most species of male and female plumage are similar, but winter feathers are different from summer feathers. It is found in shoals in swamps, lakes, coastlines, rivers and other waters. It usually breeds in the north, goes to the south for winter, and flocks during the migration season. Good at long-distance flight, flying posture head and neck forward, feet straight back; many species of flying while singing, the voice is sharp. The diet is mainly invertebrates, such as crustaceans, worms, insects, shrimp, etc., but also forages fish, frogs and small reptiles. Most species of waders of this family breed in the northern hemisphere and overwinter in warmer regions of the southern hemisphere.