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A comparison of counting methods to obtain bird species numbers

  • Publication Type

    Journal

  • Publication Year

    1979

  • Author(s)

    Ratkowsky, A. V., Ratkowsky, D. A.

  • Journal Name

    Notornis

  • Volume, Issue

    26, 1

  • Pagination

    53-61

  • Article Type

    Paper

Keywords

counting methods, bird species numbers


A comparison of counting methods to obtain bird species numbers

Notornis, 26 (1), 53-61

Ratkowsky, A. V., Ratkowsky, D. A. (1979)

Article Type: Paper

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Stationary and walking counting methods to obtain numbers of bird species in survey work were compared under Tasmanian forest conditions. For short observation times, the stationary method was clearly inferior to walking at a brisk pace through the survey area. In unsheltered areas, windy conditions significantly reduced the number of species recorded compared with calm conditions in either fine or rainy weather. When time is short, a basic 10-minute walking unit will yield a reasonable percentage of the number of species present.