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Sand Martin

Riparia riparia

Not yet photographed by the community

Smallest UK hirundine; brown back, nests in sandy banks.

Species Profile

Amber List (UK Birds of Conservation Concern)

Lifespan: 5–8 years in the wild
Size & Weight: 12–13 cm, wingspan 26–29 cm; 9–12 g
Habitat: Open areas near freshwater bodies such as rivers, lakes, gravel pits, and reservoirs where suitable nesting banks are available.
UK Distribution: Summer breeding visitor across much of England, Wales, and southern Scotland from April to September; rare in winter; absent from many upland and northern regions.
Diet: Small flying insects captured in flight, particularly midges, mayflies, small flies, and aphids.
Predators: Sparrowhawks, hobbies, and kestrels; corvids and stoats may raid nest burrows; cats threaten birds at colony sites.
Mating Season: April to August
Breeding: Clutch size 3–4 eggs; incubation period 12–15 days; fledging period 18–22 days; typically 1–2 broods per season.
Behaviour: Highly colonial, nesting in burrows excavated in soft banks and cliffs; birds arrive from African wintering grounds in spring and depart by early autumn. They hunt acrobatically over water in small, fast-moving flocks, often mixing with swallows and swifts.

Did You Know?

•Sand martins excavate their own nest burrows using their feet and bills, creating tunnel systems up to 1 metre deep in sandy or chalky banks.
•They are the earliest UK swallow family members to arrive in spring, sometimes appearing in late March.
•Sand martins undertake a remarkable annual migration between UK breeding grounds and West African wintering areas, covering thousands of kilometres.
•Colony sizes can range from a handful of pairs to several thousand, making some sites internationally important for the species.
•Their populations have declined significantly in the UK over recent decades, partly due to drought in African wintering grounds and loss of suitable nesting habitat.

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