REFERENCES
- Benson , C. 2003 . An unusual Dunnock . Ringers' Bulletin , 11 : 19
- Cramp , S. 1988 . Handbook of the birds of Europe, the Middle East and North Africa: the birds of the Western Palearctic. Volume V, Tyrant Flycatchers to Thrushes , Edited by: Cramp , S. Oxford : Oxford University Press .
- Glutz von Blotzheim , U. N. and Bauer , K. M. 1985 . Handbuch der Vögel Mitteleuropas. Volume 10/II: Passeriformes, Motacillidae–Prunellidae , Wiesbaden : AULA-Verlag GmbH .
- Jenni , L. and Winkler , R. 1994 . Moult and Ageing in European Passerines , London : Academic Press .
- Redfern , C. P.F. and Clark , J. A. 2001 . Ringers' Manual , Thetford : British Trust for Ornithology .
- Svensson , L. 1992 . Identification Guide to European Passerines. Fourth edition , Stockholm : Lars Svensson .
- Witherby , H. F. , Jourdain , F. C.R. , Ticehurst , N. F. and Tucker , B. W. 1948 . The Handbook of British Birds. Volume II, Warblers to Owls. Fifth impression , London : H.F. & G. Witherby Ltd .