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 35,000 pairs (chiefly Wales and west Britain).
Cornwall: local summer visitor in small numbers to woodlands of east and mid Cornwall. First recorded breeding was from Lanhydrock in 1966, now known to be patchily distributed in wooded valleys leading off Bodmin Moor, with some five-ten pairs nesting annually. The main sites are Lanhydrock, Draynes Woods and Dunmere. Isles of Scilly: migrant, chiefly in autumn.
Habitat & Ecology
Mature Oak Quercus spp. woodlands, with restricted understorey. The colonisation of
Cornwall is part of a recent population explosion aided by the provision of nest boxes
Destruction of ancient woodlands, and subsequent replacement with conifers.
Protection of remaining woodlands. Siting of more nest boxes at other woodland sites is desirable. Draynes Woods is a NNR, Lanhydrock is a National Trust property. 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.