The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Palearctic; in Britain and Ireland a summer visitor, with 20-115 breeding pairs (chiefly
Cornwall: very small numbers annual on passage; sporadic breeder in western parts of Cornwall, including three successive years (1981-1983). Isles of Scilly: scarce, but annual on passage. Bred occasionally on Tresco with breeding confirmed in 1958.
Habitat & Ecology
Freshwater pools and marshes, with emergent and fringe vegetation. Numbers arriving in spring fluctuate greatly, unlikely to become a permanent breeding species in the Cornwall.
Vulnerable to wetland drainage and disturbance.
Most sites are SSSI. Protected under Schedule 1 of the Wildlife and Countryside Act 1981 and Annexe 11/1 of the European Union Conservation of Wild Birds Directive. Listed (long list) as a globally threatened/declining species (BSGR, 1995).
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.