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Effects of Observer Variability on the Census of Birds


Author(s): ROD KAVANAGH and HARRY F. RECHER

During surveys of the avifauna of south-eastern New South Wales, five persons were involved in the counting of birds using a strip transect method. Although efforts were made to standardize procedures and to ensure that each person had about the same ability to identify birds, there were differences between observers which affected census results. In […]

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