Puneet Varma (Editor)

Sand martin

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Kingdom
  
Order
  
Passeriformes

Genus
  
Higher classification
  
Phylum
  
Chordata

Family
  
Hirundinidae

Scientific name
  
Riparia riparia

Rank
  
Species

Sand martin httpswwwrspborgukImagessanmatcm917205jp

Similar
  
Bird, Common house martin, Swallow, Riparia, Little ringed plover

Birds flying in slow motion panasonic hc v750 camcorder sand martin colony


The sand martin (Riparia riparia) or European sand martin, bank swallow in the Americas, and collared sand martin in the Indian Subcontinent, is a migratory passerine bird in the swallow family. It has a wide range in summer, embracing practically the whole of Europe and the Mediterranean countries, part of northern Asia and also North America. It winters in eastern and southern Africa, South America and the Indian Subcontinent.

Contents

Sand martin TOM CLARK John Clare Sand Martin

Male sand martin birds filmed having sex with a dead male


Taxonomy

Sand martin Sand martin Wikipedia

This species was first described by Linnaeus in his Systema naturae in 1758, and originally named Hirundo riparia; the description consisted of the simple H[irundo] cinerea, gula abdomineque albis—"an ash-grey swallow, with white throat and belly"—and the type locality was simply given as "Europa". The specific name means "of the riverbank"; it is derived from the Latin ripa "riverbank".

Sand martin SandMartin07487jpg

The pale martin of northern India and southeastern China is now usually split as a separate species Riparia diluta. It has paler grey-brown upperparts and a less distinct breast band. It winters in Pakistan and southern India.

Description

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The 12 cm (4.7 in) long sand martin is brown above, white below with a narrow brown band on the breast; the bill is black, the legs brown. The young have rufous tips to the coverts and margins to the secondaries.

Sand martin The RSPB Sand martin

Its brown back, white throat, small size and quick jerky flight separate it at once from similar swallows, such as the common house martin (Delichon urbicum), the American cliff swallow (Petrochelidon pyrrhonota) or other species of Riparia. Only the banded martin (R. cincta) of sub-Saharan Africa is similar, but the sand martin only occurs there in (the northern) winter.

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The sand martin's twittering song is continuous when the birds are on the wing and becomes a conversational undertone after they have settled in the roost. The harsh alarm is heard when a passing falcon, crow or other suspected predator requires combined action to drive it away.

Ecology

Sand martin Sand Martin British Birds

Linnaeus already remarked on this species' breeding habits: Habitat in Europae collibus arenosis abruptis, foramine serpentino—"it lives in Europe, in winding holes in sheer sandy hills". It is generally found near larger bodies of water, such as rivers, lakes or even the ocean, throughout the year.

Sand martin Sand Martin Populations crashed twice last 60 years Still

The sand martin appears on its breeding grounds as the first of its family, starting towards the end of March, just in advance of the barn swallow. In northern Ohio, they arrive in numbers by mid-April, about 10 days earlier than they did 100 years ago. At first, they flit over the larger bodies of water alone, in search of early flies. Later parties accompany other swallow species, but for a time, varying according to weather, the birds remain at these large waters and do not visit their nesting haunts. The sand martin departs early, at any rate from its more northerly haunts. In August, the gatherings at the nightly roost increase enormously, though the advent and departure of passage birds causes great irregularity in numbers. They are essentially gone from their breeding range by the end of September.

The food consists of small insects, mostly gnats and other flies whose early stages are aquatic.

The sand martin is sociable in its nesting habits; from a dozen to many hundred pairs will nest close together, according to available space. The nests are at the end of tunnels of from a few inches to three or four feet in length, bored in sand or gravel. The actual nest is a litter of straw and feathers in a chamber at the end of the burrow; it soon becomes a hotbed of parasites. Four or five white eggs are laid about mid-late May, and a second brood is usual in all but the most northernly breeding sites.

This is not a rare bird, and it is classified as a species of Least Concern by the IUCN. It does have some local protections, as certain populations have declined or face threats from habitat loss and fragmentation. They are considered threatened in California, where populations exist in the Sacramento Valley and at two coastal sites, Ano Nuevo and Fort Funston.

References

Sand martin Wikipedia