Wildlife

Sand Martin Welfare and Riverbank Colony Protection

How to protect sand martin colonies and support their welfare on river banks and quarry faces.

Key Facts

Sand martins excavate nest tunnels in sandy riverbanks and quarry faces
They arrive in March as one of the first summer migrants from sub-Saharan Africa
Colony sites can hold thousands of birds — making disturbance very high impact
River bank erosion and quarry operations destroy colonies rapidly

Welfare Considerations

Sand martin welfare at colonial nest sites requires protection from disturbance and physical destruction. River bank engineering that destroys active colonies during nesting causes significant welfare harm. Welfare-informed river management avoids bank works during March-August nesting season and installs purpose-built sand martin banks where natural sites are degraded. Quarry operators can manage nesting faces sensitively with guidance.

What You Can Do

Report sand martin colonies to local wildlife trusts for protection during any planned river works
Avoid approaching sand martin colonies at close range — communal alarm calls indicate welfare disturbance
Support the installation of sand martin nesting banks at sites where natural banks are lost