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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Letters

01 February 1971
Comments Letters Elusive species and the B.T.O. Ornithological Atlas project Some species are proving to be difficult to locate in fieldwork for the Ornithological Atlas. In order to prepare full maps for these species, we cannot rely solely on fieldwork carried out purel...
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