The ruff is one of the most extraordinary waders in the world, with males developing an elaborate collar of feathers for competitive lekking display, but it is critically rare as a British breeding bird and vulnerable on passage due to hunting.
Ruff welfare at British breeding sites requires specialised management of shallow, productive wetland with appropriate vegetation structure for lek display and nesting. Predator pressure at the tiny UK breeding population is significant. Legal hunting of ruffs on migration routes through parts of Europe affects a population already at very low numbers in Britain. The species dependence on managed wetland reserves for UK breeding makes each reserve management decision critical for the population.