Letters

01 February 1992 Comments Letters Status of Marsh Warbler in Norway Kelsey et al. (1989), in their interesting paper on the Marsh Warbler Acrocephalus palustris in Britain, summarised the species' northward expansion into the St Petersburg region and in Finland and Sweden, but made no ...
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Letters

01 April 1979 Comments Letters Birds dunking food There are many references in the literature to birds washing food; they cover about six families and almost all are for water birds. Although termed 'food washing', the behaviour described may fulfil several functions. During...
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