Brief Summary
provided by Ecomare
Sand martins live off of insects which they catch in flight. They build tunnels in bare steep sandy walls, which serve as their nest. Sand martins breed in colonies, so that you often see multiple holes in the wall. Breeding in a steep sandy wall is not without risks: there is great danger of collapsing. The Lauwersmeer is an important breeding area for sand martins.
- license
- cc-by-nc
- copyright
- Copyright Ecomare