Sand Martin

Sand Martin

European sand martin, Bank swallow, Collared sand martin

Kingdom
Phylum
Class
Family
Genus
SPECIES
Riparia riparia
Population size
10-500M
Life Span
9 yrs
TOP SPEED
50 km/h
WEIGHT
10-19 g
LENGTH
12-14 cm
WINGSPAN
25-29 cm

The Sand martin is a small migratory bird in the swallow family. It is brown above and white below with a narrow brown band on the breast. Its bill is black and the legs are brown. The brown back, white throat, small size, and quick jerky flight of the Sand martin separate it at once from similar swallows, such as the Common house martin, the American cliff swallow.

Distribution

Sand martins have a wide range in summer, embracing practically the whole of Europe and the Mediterranean countries and across the Palearctic to the Pacific Ocean. They are also found in North America. Sand martins winter in eastern and southern Africa, South America, and the Indian Subcontinent. These birds are generally found near larger bodies of water, such as rivers, lakes, or even the ocean, throughout the year. They forage in open areas such as grassland and farmland and tend to avoid dense forests and mountainous areas.

Sand Martin habitat map

Geography

Countries
Afghanistan, Albania, Algeria, Armenia, Austria, Azerbaijan, Belarus, Belgium, Bosnia and Herzegovina, China, Show More Croatia, Cyprus, Czech Republic, Egypt, Estonia, Georgia, Hong Kong, Hungary, India, Ireland, Japan, Kazakhstan, South Korea, North Korea, Latvia, Lithuania, Luxembourg, Malta, Mexico, Moldova, Mongolia, Montenegro, Morocco, Nepal, Netherlands, Macedonia, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Taiwan, Tajikistan, Turkey, Turkmenistan, United Kingdom, United States, Uzbekistan, Angola, Argentina, Belize, Benin, Bolivia, Botswana, Brazil, Burkina Faso, Cambodia, Cameroon, Central African Republic, Chad, Chile, Colombia, Congo, DR Congo, Costa Rica, Cote d'Ivoire, Djibouti, Ecuador, Eritrea, Ethiopia, Gabon, Gambia, Ghana, Guinea, Guinea-Bissau, Guyana, Kenya, Laos, Liberia, Libya, Liechtenstein, Madagascar, Malawi, Malaysia, Mali, Mauritania, Mozambique, Myanmar, Namibia, Niger, Nigeria, Paraguay, Peru, Philippines, Rwanda, Senegal, Sierra Leone, Singapore, Somalia, South Africa, South Sudan, Sudan, Suriname, Tanzania, Thailand, Togo, Tunisia, Uganda, Uruguay, Venezuela, Viet Nam, Western Sahara, Zambia, Zimbabwe, Antigua and Barbuda, Bahamas, Bahrain, Bangladesh, Barbados, Bhutan, Cuba, Dominica, Dominican Republic, El Salvador, Guadeloupe, Guatemala, Honduras, Israel, Jamaica, Jordan, Kuwait, Nicaragua, Palestine, Panama, Qatar, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Saudi Arabia, Syria, Trinidad and Tobago, Bulgaria, Canada, Denmark, Finland, France, Germany, Greece, Iran, Iraq, Italy, Lebanon, Oman, Ukraine, United Arab Emirates, Yemen, Brunei, Comoros, Faroe Islands, Indonesia, Lesotho, Maldives, Seychelles, Sri Lanka Show Less

Climate zones

Habits and Lifestyle

Sand martins are very social birds that live and nest in colonies. They are active during the day and spend their time foraging, preening, and often sunbathe in groups. At night they gather in communal roosts. Sand martins are fast and agile fliers. They rarely land on the ground and are often seen perching or in flight. These birds usually forage in the morning singly or in groups; they catch insects on the wing and occasionally on the ground or over the water. Sand martins constantly communicate with each other; their 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 usually heard when a passing falcon, crow, or other suspected predator requires combined action to drive it away.

Seasonal behavior

Diet and Nutrition

Sand martins are carnivores (insectivores). Their diet consists of small insects, mostly gnats and other flies whose early stages are aquatic.

Mating Habits

MATING BEHAVIOR
REPRODUCTION SEASON
late March to late September
INCUBATION PERIOD
14-15 days
INDEPENDENT AGE
25-29 days
BABY NAME
chick
BABY CARRYING
4-5 eggs

Sand martins are serially monogamous and pairs remain together for the nesting season. They appear on the breeding grounds starting towards the end of March and leave by the end of September. Sand martins are sociable in their nesting habits; from a dozen to many hundred pairs will nest close together, according to available space. The burrow is excavated by the male first and then he will perform territorial circle flights around the burrow entrance while singing, trying to attract females. When the pair is formed, both birds complete this work. The tunnel is dug in sand or gravel soils. The nests are placed at the end of tunnels which are 50 to 100 cm long and lined with straw and feathers. The female lays 4-5 white eggs and both parents incubate them for 14-15 days. Pairs usually produce two broods in one breeding season. The chicks are helpless (altricial) and cared for by both adults. They fledge and leave the nest around 18 to 22 days after hatching but remain dependant on their parents for up to a week more. The young will then reach reproductive maturity in their first year of age.

Population

Population threats

Sand martins are not considered globally threatened. However, certain populations have declined or face threats from habitat loss and fragmentation. They also suffer from the use of pesticides and droughts in their wintering grounds.

Population number

According to the IUCN Red List, the total Sand martin population size is 10,000,000-500,000,000 mature individuals. The European population consists of 3,640,000-8,000,000 pairs, which equates to 7,280,000-16,000,000 mature individuals. National population estimates include around 10,000-100,000 breeding pairs and around 1,000-10,000 individuals on migration in China; around 100-10,000 breeding pairs and less than 50 wintering individuals in Japan, and around 10,000-100,000 breeding pairs and around 1,000-10,000 individuals on migration in Russia. Overall, currently, this species is classified as Least Concern (LC) on the IUCN Red List but its numbers today are decreasing.

Ecological niche

Sand martins control populations of a wide range of insects that they consume in their diet. Due to their habits to excavate burrows, these birds also provide shelter for other bank burrowing birds such as house sparrows, European starlings, kingfishers, barn owls, and swallows.

Fun Facts for Kids

  • The scientific name of the Sand martin, Riparia, is derived from the Latin 'ripa' and means 'riverbank'.
  • In the Americas, Sand martins are known as Bank swallows.
  • In hot summer days, Sand martins enjoy bathing in groups.
  • During the day Sand martin chicks gather in groups called crèches and at night may roost in neighboring burrows. Parents will then recognize their own chicks using individual calls.

References

1. Sand Martin on Wikipedia - https://en.wikipedia.org/wiki/Sand_martin
2. Sand Martin on The IUCN Red List site - https://www.iucnredlist.org/species/103815961/155536007

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