The Dendrocygna bicolor, also known as the Fulvous Whistling Duck, is noted for its striking tawny plumage and long legs. Found in tropical wetlands across the Americas, Africa, and India, it thrives in marshes and rice fields. The species is social, often seen in flocks, and recognized by its distinctive whistling calls.

Dendrocygna bicolor, commonly known as the Fulvous Whistling Duck, is native to tropical and subtropical regions across the globe. It is found in parts of the Americas, including southern United States, Mexico, Central America, and parts of South America such as Argentina and Brazil. In Africa, it is distributed in the sub-Saharan region, including countries like Senegal, Nigeria, and South Africa. In Asia, populations are found in the Indian subcontinent and Southeast Asia, particularly in India and Bangladesh.

The Fulvous Whistling Duck typically inhabits freshwater wetlands, such as marshes, ponds, lakes, and flooded fields. It prefers areas with abundant emergent vegetation like reeds and grasses, which provide food and cover. This species thrives in warm, tropical, and subtropical climates, with environments characterized by seasonal flooding.

As a waterfowl, the Fulvous Whistling Duck feeds primarily on seeds and grains from aquatic plants as well as rice, making it common in rice paddies. Its ecological role includes seed dispersal and maintaining the health of wetland ecosystems. The species is highly social, often forming large flocks, and is known for its distinctive whistling calls. Variations in its habitat may occur due to regional adaptations, such as tolerance to brackish water in some coastal areas.