Dunlin Welfare: Estuarine Habitat Loss in the UK

Dunlin are among the most numerous wintering waders in UK estuaries, but face welfare challenges from coastal squeeze, sea level rise, and disturbance at intertidal roost sites.

Key Facts

Up to 500,000 dunlin winter on UK estuaries, representing a significant proportion of the East Atlantic Flyway population
Intertidal mudflats provide the invertebrate-rich feeding habitat essential for maintaining winter body condition
Coastal squeeze from sea level rise and fixed defences reduces available intertidal foraging area
High-tide roost disturbance forces repeated flight in the critical winter period when energy conservation is essential

Welfare Considerations

Dunlin welfare in winter depends on access to productive intertidal feeding grounds and undisturbed high-tide roost sites. Loss of mudflat area from coastal squeeze forces birds to compete more intensely for remaining foraging habitat. Repeated disturbance at roost sites forces unnecessary flight, burning energy reserves at the time they need most conserving. Managed retreat policies that allow new intertidal habitat to form ahead of sea-level rise are critical long-term welfare measures. Designating high-tide roost sites as disturbance-free zones during winter months provides immediate welfare benefit.

What You Can Do

Support managed coastal realignment projects that create new intertidal mudflat habitat
Advocate for disturbance-free zones at key wader roost sites during the winter period
Oppose coastal development that reduces intertidal foraging habitat on important estuaries
Report disturbance incidents at wader roost sites to wildlife reserves or conservation organisations