Letters

01 February 1979
Comments Letters The use of flash in bird photography I sympathise with R. A. Hume (Brit. Birds 71 : 422) regarding the indiscriminate use of flash on diurnal birds in instances where the background cannot be properly illuminated and a false nocturnal effect is created...
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Letters

01 May 1952
Comments Letters --The increasing use of various types of colour-marking for the field recognition of birds must lead to confusion between individual experiments unless an authoritative central register can be compiled. The Scientific Advisory Committee of the British Tru...
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