Wild geese are traditional high-quality game treasures and ideal health products. They have always been valued by people. At present, in the major cities along the coast, the price of each wild geese is as high as 200-300 yuan, but many game markets are often priceless. The huge commodity consumption market has made Dayan become the new darling of special-care industries. More and more people have realized that the prospects of artificial breeding geese market are promising. Some local people with keen eyesight have begun artificial breeding. It is worth noting that some lawbreakers have sold Goose, Goose, Goose, Goose, Geese, and other geese that appear to be wild geese and sold them as geese. They have collected money for illegitimate purposes and brought financial losses to the breeders. The identification method of Dayan is introduced as follows. Wild geese, also known as wild geese, ducks, wild geese are wild geese, bean geese, white goose geese and so on. They are similar in sex. The base of the mouth is higher, the length of the mouth and the head is almost equal, the edge of the upper mouth has strong dentate protrusions, and the mouth is powerful, which accounts for all of the mouth's mouth. The nostrils are long and located in the middle or slightly behind the mouth. The wings are long and sharp, and the tail is round. After the moult, the feathers are bright, and after wear, they become darker and more light brown. The markings are not clear. The specific morphological characteristics and differences with the geese are: First, Hongyan. The geese are brown-gray, but there is a reddish-brown long line on the crown, head and neck and back neck. The mouth is black, and the male base expands to become a coronal tumor. The female tumor is underdeveloped. Eye brown, mouth black, legs and feet orange, claw black. The difference with geese is: (1) mouth. Hongyan chicks have dark black shells and clear white lines on their mouths, but the goose has more mouth color and no white ring patterns on the mouth. Some of the goose's mouth shells look dark black at first, and light gray or light blue when they look fine. (2) Feather. The geese had tight velvet feathers and darker color, while the goslings had more feathers than the thin boobies, and their color was bright; (3) neck. The goose's neck is longer than the goose; (4) the abdominal area. The geese's abdominal area is hemispherical, more developed, and the flattening of the geese abdominal area is relatively flat and undeveloped. Second, bean geese. The head and neck are gray-brown, dark brown back and shoulder feathers, black brown waist, light gray belly, covered tail feathers, lower pure white, brown eyes, sometimes pink, black mouth, yellow ring spots behind the mouth, sometimes Reach the nostrils, legs and feet orange. The difference with a goose is to see feathers. The dorsal geese and adults have a white belly on the tail and the waist and tail feathers are dark brown, while the goose has no such features. Third, white goose geese. On the forehead of the bisexual mouth base, there are white stripes. The feathers of the head, neck and back are brownish black, the feathers are greyish white, the tail feathers are brownish-black, the feathers are white, and the chest and abdomen are brownish-gray, and the cloths have irregular dark spots. This dark spot, the mouth is also no white lines. The geese and geese vary greatly in form and are easily distinguished.