Dunlin Conservation on Coastal Estuaries

Dunlin are the most abundant small wader on British estuaries in winter, with welfare dependent on invertebrate-rich intertidal mudflats.

Key Facts

Up to 350,000 dunlin winter on British estuaries migrating from Arctic breeding grounds
They feed on small invertebrates including lugworm fragments and amphipods in soft mudflats
High-tide roosts gathering thousands of birds are vulnerable to disturbance from walkers and dogs
Intertidal habitat loss through sea level rise and coastal development threatens winter feeding grounds
Breeding dunlin on upland blanket bogs have declined due to habitat degradation

Welfare Considerations

Winter dunlin welfare depends on access to productive intertidal mudflats with sufficient invertebrate abundance to fuel thermoregulation in cold conditions. Intertidal habitat loss reduces the foraging area available, forcing higher density feeding with increased competition. High-tide roost disturbance forces birds to fly repeatedly at the period when they should be resting and conserving energy. Breeding dunlin on upland bogs face deteriorating habitat from drainage and overgrazing. Conservation of intertidal habitats and management of disturbance at high-tide roosts directly benefits individual dunlin welfare during the critical winter period.

What You Can Do

Keep dogs on leads near estuary high-tide roosts during winter to prevent disturbance
Support wetland and coastal conservation protecting intertidal habitat for dunlin
Participate in estuary wader count surveys contributing to population monitoring
Advocate for coastal habitat management policies protecting intertidal feeding grounds from development