Basic introduction Chinese name: wading bird mbth: wading bird nature: those birds that adapt to living by the water include cranes, storks, and? The main characteristics of bustard and spoonbill. Definition of mouth length, neck length and foot length, appearance characteristics, living habits, population distribution, Sino-foreign wading bird cooperation projects. The definition of wading birds refers to those birds that are adapted to living in swamps and watersides. Wading birds are birds that are adapted to living in shallow waters or shores. All species including Hemiptera, Red Stork, Crane and Silurian are wetland waterfowl. Not including seabirds with webbed beaches. The main characteristics are "three lengths"-long mouth, long neck and long feet. Suitable for wading, not swimming. Stand on one foot when resting, and mostly get food from the bottom of the water, mud or the ground. Herons, storks, cranes and storks all belong to this category. The shape characteristics of wading birds vary greatly. As big as the red-necked crane Grusantigone, its body length exceeds 170cm, and as small as the little snipe Calidris minuta, its body length is only about 14cm. Birds that live near the water, but their necks are obviously longer than those of other ecological groups; Leg length is suitable for wading, which is directly related to the depth of wading; Gaskin and tarsometatarsal bones are generally covered with horny scales and have no feathers to facilitate their wading; Sometimes there are webbed toes, but unlike the swimming birds, the webbed feet of wading birds only exist at the toe root, which is called half webbed or micro webbed. Its main function is to increase the contact area with the ground and facilitate walking on the wetland. Some species (such as crake and pheasant) have slender toes that can scurry on lotus leaves or duckweeds. Most of the tails are short, and the wings of large species are long and wide, which can fly short distances; Races (such as snipes) have short and sharp wings, fast and flexible flight, and their body feathers are mostly gray and brown, which are very close to the color of beach mud and are effective protective colors. Generally, nests are built in trees, grass, crevices, roofs (such as storks) or grass in shallow waters (such as cranes), and the nests are made of branches and grass stems; Some kinds of nests are very simple. Generally, a shallow depression is dug on the ground near the water surface without bedding (such as snipe), but their eggs are similar in color to the environment and are not easy to be found. Many wading birds can nest in the Woods far away from the wetland, and even live in groups, forming an extremely spectacular nesting site for wetland waterfowl (such as herons). The young birds in Hemiptera are late-maturing; The chicks of cranes and catfish belong to precocious birds. There are at least 2 10 species of wading birds, most of which are distributed in wetlands or coastal areas. Some species in Arctic and temperate regions tend to migrate, while species in tropical regions tend to be resident birds (no migratory habits) or only migrate in different rainfall zones. Some Arctic species, such as the sandpiper, a long-distance migratory animal, will appear in the southern hemisphere during the non-breeding season. Population distribution: Herons and storks are large and medium-sized wading birds. The shape of heron and stork is very similar, but the neck of heron often bends into an "S" shape when flying, while the neck of stork is straight. There are 20 species of herons in China, most of which belong to precious birds. Storks are large wading birds. When flying, their heads, necks and legs stretch forward and backward. Storks are world-famous rare birds. Zhu? It is one of the most endangered birds in the world, only distributed in the Qinling Mountains of Shaanxi Province, China. Cranes come in different sizes. They have no webbed toes or only a little webbed toes, and their rear toes are higher than the first three toes. When flying, the neck is straight. The crane has a graceful figure, a thin neck and long feet, elegant and generous manners, clear rhythm, natural and unrestrained dancing and sweet and loud singing. Red-crowned cranes with red heads are called "cranes". Snipers are medium or small wading birds. There are many kinds, mostly sandy bodies, fast running, sharp wings and good at flying. In order to protect young birds, parents often drag a wing to induce enemies to chase and give up birds. People often say that "the snipe and the clam compete, and the fisherman gains" refers to this kind of bird. The Sino-foreign wading bird cooperative project, the Sino-Australian wading bird cooperative research project, conducted a wading bird survey in Poyang Lake Nature Reserve from April 2 9 to May 3, 2 0 0 0, and counted 35 wading birds of 2 2 species. Among them, three species of wading birds, including crane snipe, green-footed snipe and forest snipe, reached the international important quantitative standards, and a large number of black-tailed snipes were found, and four species of birds accounted for 89% of the total investigation; Other birds that may meet the important quantitative standards are snipe, black-bellied shorebird and crested pheasant; Fringed snipe and curved-billed snipe are new bird distributions in Jiangxi Province and new records in Poyang Lake Nature Reserve. China snipe is a new record of Poyang Lake Nature Reserve. Because of the rising water level, a large area of potential habitat suitable for wading birds has been formed.