Identifying Features: Sand martins are the smallest European hirundines (martins and swallows), with dark brown upper parts and dark under wings contrasting with otherwise pale under parts divided by a distinctive dark chest bar. Agile fliers, feeding mainly over water, they will perch on overhead wires or branches
Average Length: 12 cm
Average Lifespan: 2 years
Average Wingspan: 26 -29 cm
Nesting: Sand Martins nest in colonies, burrowing into banks, quarries and cliffs, and usually near water. Both sexes construct the nest burrow and line the nest chamber with plant material and feathers.