Dunnocks breed in Asia Minor across to Iran but otherwise only in Europe east to the Urals, excluding Iceland and also much of Ukraine and the southern parts of Mediterranean countries. North and east European Dunnocks migrate south in winter, some reaching Mediterranean islands and north Africa. British Dunnocks on the other hand are sedentary.
    In Britain they are absent only from treeless stretches of the Scottish Highlands and from parts of the Outer Hebrides and the Northern Isles, and there has been little change in range since the 1968-72 Breeding Atlas.There was however a 46% population reduction in the last quarter of the 20th century, the causes of which remain little understood. There has been some recovery in numbers since then and they remain one of the country's commonest birds.
    In Wiltshire they are common and widespread, absent only from a few areas, such as the open expanses of Salisbury Plain, where their favoured habitat - low dense cover - is missing. Birds of Wiltshire recorded them in 839 tetrads with breeding in 594 of them. WTA2 recorded them in 853 tetrads with breeding in 481.

The following references are used throughout these species accounts, in the abbreviated form given in quotation marks:
1968-72 Breeding Atlas” – Sharrack, J.T.R. 1976:  The Atlas of Breeding Birds in Britain and Ireland. T. & A. Poyser
1981-84 Winter Atlas” – Lack, P.C. 1986:  The Atlas of Wintering Birds in Britain and Ireland. T. & A. Poyser
1988-91 Breeding Atlas” – Gibbons, D.W., Reid, J.B. & Chapman, R.A. 1993: The New Atlas of Breeding Birds in Britain and Ireland 1988-91. T. & A. Poyser
Birds of Wiltshire” – Ferguson-Lees, I.J. et al. 2007 : Birds of Wiltshire, published by the tetrad atlas group of the Wiltshire Ornithological Society after mapping fieldwork 1995-2000. Wiltshire Ornithological Society.
Bird Atlas 2007-2011” – Balmer, D.E., Gillings, S., Caffrey, B.J., Swann, R.L., Downie, I.S. and Fuller, R.J. 2013: Bird Atlas 2007-2011: the Breeding and Wintering Birds of Britain and Ireland
WTA2” – ("Wiltshire Tetrad Atlas 2 ") the present electronic publication, bringing together the Wiltshire data from “Birds of Wiltshire” and “Bird Atlas 2007-11”, together with data from further fieldwork carried out in 2011 and 2012.
"Hobby" - the annual bird report of the Wiltshire Ornithological Society.