UK Wildlife

Dunlin Most Numerous UK Estuary Wader

The dunlin is the most numerous wader on UK estuaries in winter, forming spectacular murmurating flocks of tens of thousands, and also breeds on upland moorland.

Key Facts

Dunlin is the most numerous UK wintering wader with up to 600,000 birds on estuaries
Breeding population around 8,500 pairs on northern and upland moorland
Famous for spectacular synchronised flight of large wintering flocks
Has declined significantly as a moorland breeding bird
Feeds on small invertebrates in estuarine mud by rapid probing

Welfare Considerations

Dunlin breeding declines relate to moorland drainage and agricultural improvement reducing nest habitat quality. Wintering estuarine populations depend on intact tidal flats. Disturbance at roosting sites is a welfare concern for large concentrations.

What You Can Do

Support moorland restoration to improve breeding dunlin habitat
Advocate for estuarine habitat protection across all major UK estuaries
Record dunlin through WeBS counts as the most abundant estuarine wader