Adult males are particularly resplendent. Their heads and necks are a rich chestnut color, offset by a bright red bill with a distinct ivory tip. The plumage on their rump and breast is jet black, extending to the back of the head, while the rest of the body shows a combination of gray - brown on the wings and a stark white underbelly. In flight, the white plumage outlining the light brown feathers of the wings is highly visible. Females, in contrast, have a more subdued all - brown appearance, with a darker brown cap on their heads and a bill that is typically gray or black with a pale orange tip. Measuring about 56 cm in length and weighing 1 - 1.2 kg, they are relatively large among waterbirds.

These pochards are migratory, with breeding populations spanning from the British Isles to China. During winter, they scatter throughout Eurasia in groups around the Black Sea, the eastern Mediterranean, and central Europe. They prefer larger eutrophic lakes, reservoirs, and slow - flowing rivers that are well - equipped with shrubs and grasses. Their diet mainly consists of aquatic vegetation, but they also consume aquatic invertebrates, mollusks, small fish, and amphibians. They forage by both diving and dabbling, often seen searching for food in shallow waters.

In the breeding season, males engage in courtship displays, even bringing food to females. After mating, pairs build nests either on the ground in dense vegetation or on floating vegetation platforms. Females take on the sole responsibility of incubating the eggs and rearing the young, which fledge after about 10 weeks. Meanwhile, males gather in known areas to molt. Despite facing some threats like habitat loss, the Red - crested Pochard continues to grace wetland ecosystems, a testament to its adaptability and an important part of our natural world's avian diversity.