There are two subspecies of Cotton Pygomy-goose.
They often live in pairs or in small groups of a few to more than 20 individuals. Sex is more docile. Good swimmer, also good diver, but generally rarely diving. They usually spend most of their time in the water, not going ashore, but sometimes climbing on trees or other objects protruding from the water. When frightened, it can immediately rush out of the water and fly, take off quickly and flexibly, and constantly issue a "cluck" call. Usually does not fly high, the two wings incitement amplitude is small, the flight distance is not large, but the flight speed is faster. It is mainly active during the day, and it lives on lakes or branches at night.
It feeds mainly on buds, leaves and roots of aquatic and terrestrial plants, as well as aquatic insects, worms, snails, mollusks, crustaceans and small fish. Foraging activities during the day, often in the surface and shore shallow water to feed, rarely diving to hunt.
The breeding season is from May to August. They often form small groups before breeding, and pairs during breeding. Nests are built in tree holes not far from the water, also seen in camphor tree holes in front of the house and willow tree holes by the pool, and even in abandoned chimneys. Each clutch lays 8-14 eggs, is white in color, 38-47×29-36 mm in size, averaging 75×33 mm, and weighs 27 grams. The female incubates her eggs and the male keeps watch near the nest. Incubation period is 15-16 days. Breed one to two litters a year.
The number of cotton lapwing is rare in China, and measures should be taken to strengthen wetland management and prohibit hunting and egg collecting during breeding period to protect it.
In June 2022, "Eifeng Mountain people", a member of Quanzhou bird watching Society, found the cotton lapwing, a national second-class protected animal, while watching birds in the field of ninety-nine streams in Jinjiang. This is the first time that the bird appeared in Quanzhou, and it also set a new record for the bird species in Quanzhou - so far, a total of 331 bird species have been recorded in Quanzhou.
On June 9, 2022, Mian Fu appeared in the Big Mianchi Lake District, Duchang County, Poyang Lake.
In June 2022, there are photographers in Yuxi City, Jiangchuan District, Xingyun Lake east bank Wetland Park photographed the national second-class key protected animals cotton teal, this is their first appearance in Xingyun Lake. In June of the same year, the rare bird cotton Fu appeared in Shuangguihu National Wetland Park, Liangping District, Chongqing. On July 31, the cotton lapwing appeared in the shoal of Lugou Bridge section of Yongding River in Beijing, which is the first time that the cotton lapwing appeared in Fengtai, Beijing.
It was included in the List of Land Wild Animals under State Protection that are beneficial or have important economic and scientific research value (Item 65) issued by the State Forestry Administration of China on August 1, 2000.
Listed in the International Union for Conservation of Nature Red List of Threatened Species (IUCN) for 2016 ver 3.1 - Not Threatened (LC).
Listed in China's "National Key Protected Wildlife List" (February 5, 2021) Level 2.
Protect wild animals and eliminate wild meat.
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