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Riparia
	Sand martin (Riparia riparia)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Hirundinidae
Subfamily:	Hirundininae
Genus:	Riparia; T. Forster, 1817
Type species
	Riparia europaea = Hirundo riparia; T. Forster, 1817
Species
	R. paludicola; R. chinensis; R. congica; R. riparia; R. diluta

Riparia is a genus of passerine birds in the swallow family Hirundinidae.

These are small or medium-sized swallows, ranging from 11 to 17 cm (4.3 to 6.7 in) in length. They are brown above and mainly white below, and all have a dark breast band. They are closely associated with water. They nest in tunnels which are usually excavated by the birds themselves in a natural sand bank or earth mound. They lay white eggs, which are incubated by both parents, in a nest of straw, grass, and feathers in a chamber at the end of the burrow. Some species breed colonially.

The cosmopolitan sand martin is almost completely migratory, breeding across temperate Eurasia and North America and wintering in the tropics. The other species are partial migrants or resident. Riparia martins, like other swallows, take insects in flight over water, grassland, or other open country.

Taxonomy

The genus Riparia was introduced by the German naturalist Johann Reinhold Forster in 1817 with the sand martin (Riparia riparia) as the type species.^[2]^[3] The genus name is from the Latin riparius which means "of the riverbank"; it is derived from the Latin ripa "riverbank".^[4]

The genus contains six species:^[5]

Scientific name	Common name	Distribution
R. paludicola (Vieillot, 1817)	brown-throated martin	Africa
R. cowani (Sharpe, 1882)	Madagascar martin	Madagascar
R. chinensis (J.E. Gray, 1830)	grey-throated martin	Tajikistan, Afghanistan and Indian subcontinent to southern China, Taiwan, and the northern Philippines
R. congica (Reichenow, 1887)	Congo martin	Congo River and its tributary, the Ubangi.
R. riparia (Linnaeus, 1758)	sand martin or bank swallow	Breeding season: practically the whole of Europe and the Mediterranean countries, part of northern Asia and also North America. Non-breeding: eastern and southern Africa, South America and the Indian Subcontinent
R. diluta (Sharpe & Wyatt, 1893)	pale martin or pale sand martin	central Asia to southeastern China