Anas fulvigula

North American spotted duck 55 cm. Brown-black body, bright head and neck, black eye stripes and black eyes, legs orange, wings with shiny green-blue wing mirrors. Male and female ducks are similar, but the male's bill is bright yellow, while the female's bill has a yellow-green hue.

The North American duck is found in North America, including the United States, Canada, Greenland, Bermuda, St. Pierre and Miquelon Islands, and Mexico in the transition zone between North and Central America.
North American spotted ducks usually live near freshwater lakes, but also live in groups in rivers, lakes, reservoirs, bays and coastal salt flats.

The Mottled Duck (Anas fulvigula) is a medium-sized swimming bird in the family Anatidae.

The North American spotted duck likes to live in clusters in winter, and most of its activities choose to live in the wild grass in the marsh area near the water. It mainly floats on the surface of the water and gets its food underwater, eating plants as the staple food and sometimes animal foods. Ducks have webbed toes, but rarely dive, swim with their tails out of the water, and are good at feeding, splashing and mating in the water. Like clean, often in the water and on the land preening carefully dressed. While sleeping or resting watch over each other, males often stay alert while females sleep. There are often more breaks in the middle of the day than in the morning or evening. Before spring comes, I am lazy and sleepy, but as time goes on, I become active, swimming, walking or flying. It mainly feeds on roots, grass seeds, leaves, grass fruits, rice, etc. in marshes and lake areas, and also eats invertebrates and arthropods.

The breeding season of the North American spotted duck is from April to June, and the nest is built out of plant stems into a bowl-shaped nest, which is above the nearby water and hidden among the water weeds. Each nest lays 4 to 12 eggs and hatches for 21 to 25 days. The young birds leave the nest for 49 days and are usually incubated alone by the female ducks. After hatching, they are still cared for by the female ducks, and the ducklings follow the female ducks for food.

North American spotted ducks live in coastal salt flats and are easy victims of oil pollution.

Listed in the International Union for Conservation of Nature Red List of Threatened Species (IUCN) for 2016 ver 3.1 - Not Threatened (LC).

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