The long-billed plover (Charadrius placidus) is a species of wading bird in the family Charadriidae. It can be found in Bangladesh, Bhutan, Brunei, Cambodia, China, Hong Kong, India, Indonesia, Japan, Laos, Malaysia, Mongolia, Myanmar, Nepal, North Korea, Russia, South Korea, Sri Lanka, Taiwan, Thailand, and Vietnam. The long-billed plover is a migratory bird, so it breeds and spends the winter in different parts of its range. This bird can often be spotted along the shores of rivers, streams, in wetlands, and rice fields. It forages on the shoreline primarily for aquatic insects, insect larvae, and other invertebrates. It is difficult to distinguish between male and female individuals because of their similar plumage. The breeding season starts at the end of February or early March and ends in July. A male and a female forms a monogamous pair and maintains their territory throughout the breeding season. A global population survey in 2016 assessed the long-billed plover as a species of least concern on the International Union for Conservation of Nature (IUCN) Red List. Description Measurement and plumage The long-billed plover is a medium-sized wading bird about , and weighing around . The different body parts of males and females are similar in size. On average, the wing length is , its tail length , and the bill is about long. Both males and females have a grayish brown back and a white belly and throat. The forehead is white with a black band that runs from one eye to the other. The white patch of the forehead extends to the base of the bill. There is a black breast band below the throat. The eyes have a yellow ring around them, and a white stripe above. Even though the male and female have a similar appearance, their breeding plumage (summer plumage) has a few differences that can help distinguish between the two sexes. The black band on the forehead and on the breast of the male is wider and more distinct than that of the female. The feathers around the eyes of an adult breeding male are much darker than those of a female. Furthermore, the male's white eyestripe extends more distinctly behind the eye compared to that of the female. Juveniles look quite similar to adult individuals, however they lack the dark forehead band of adult birds. The breast band of juveniles is narrower and less distinct than that of