The River Lapwing, Vanellus duvaucelii, is a lapwing

Lapwing

Vanellinae are any of various crested plovers, family Charadriidae, noted for its slow, irregular wingbeat in flight and a shrill, wailing cry. Its length is 10-16 inches. They are a subfamily of medium-sized wading birds which also includes the plovers and dotterels. The Vanellinae are...

 species which breeds in Southeast Asia

Southeast Asia

Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

 from northeastern India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

 to Cambodia

Cambodia

Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...

, Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

 and Vietnam

Vietnam

Vietnam – sometimes spelled Viet Nam , officially the Socialist Republic of Vietnam – is the easternmost country on the Indochina Peninsula in Southeast Asia. It is bordered by China to the north, Laos to the northwest, Cambodia to the southwest, and the South China Sea –...

. It appears to be entirely sedentary

Bird migration

Bird migration is the regular seasonal journey undertaken by many species of birds. Bird movements include those made in response to changes in food availability, habitat or weather. Sometimes, journeys are not termed "true migration" because they are irregular or in only one direction...

. Formerly also called Spur-winged Lapwing, this name is better reserved for one of the "Spur-winged Plovers" of old, Vanellus spinosus of Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, whose scientific name it literally translates. The Masked Lapwing

Masked Lapwing

The Masked Lapwing , previously known as the Masked Plover and often called the Spur-winged Plover or just Plover in its native range, is a large, common and conspicuous bird native to Australia, particularly the northern and eastern parts of the continent...

 of Australasia

Australasia

Australasia is a region of Oceania comprising Australia, New Zealand, the island of New Guinea, and neighbouring islands in the Pacific Ocean. The term was coined by Charles de Brosses in Histoire des navigations aux terres australes...

 was at one time also called "Spur-winged Plover", xompleting the name confusion - particularly as none of these is a plover

Plover

Plovers are a widely distributed group of wading birds belonging to the subfamily Charadriinae. There are about 40 species in the subfamily, most of them called "plover" or "dotterel". The closely related lapwing subfamily, Vanellinae, comprises another 20-odd species.Plovers are found throughout...

 in the strict sense.

This species resembles the closely related Spur-winged Lapwing of Africa

Africa

Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...

, and has sometimes been considered conspecific. The species name commemorates Alfred Duvaucel

Alfred Duvaucel

Alfred Duvaucel was a French naturalist and explorer. He was the stepson of Georges Cuvier.- Journeys in South and Southeast Asia :...

.

Description

The River Lapwing is 29–32 cm long. It has a black crest, crown, face and central throat and grey-white neck sides and nape. It has a grey-brown breast band and white underparts with a black belly patch. The back is brown, the rump is white and the tail is black. This is a striking species in flight, with black primaries, white under wings and upper wing secondaries, and brown upper wing coverts.

Adults of both sexes are similarly plumaged, but males are slightly larger than females. Young birds have the brown tips to the black head feathers, a sandier brown back, and pale fringes to the upperpart and wing covert feathers. The call of the River Lapwing is a sharp tip-tip or did-did-did.

Behaviour

The breeding display, given on the ground, includes stooping, spinning, stretching and crest-raising.

The River Lapwing nests on shingle and sand banks from March to June. It lays two eggs on a ground scrape. It feeds on insect

Insect

Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

s, worm

Worm

The term worm refers to an obsolete taxon used by Carolus Linnaeus and Jean-Baptiste Lamarck for all non-arthropod invertebrate animals, and stems from the Old English word wyrm. Currently it is used to describe many different distantly-related animals that typically have a long cylindrical...

s crustaceans and molluscs in nearby wet grassland and farmland. It is not gregarious.