Vol. 68 No. 4 (1991)

Research articles

• Hourly variation in transect counts of birds

  J. G. Blake, J. M. Hanowski, G. J. Niemi, P. T. Collins

  139–147

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• Censusing tetranoids by the Finnish wildlife triangle method: principles and some applications

  P. Helle, J. Lindström

  148–157

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• Dynamics of Finnish Starling Sturnus vulgaris populations in recent decades

  T. Solonen, J. Tiainen, E. Korpimäki, P. Saurola

  158–169

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• On the relationship between distribution and abundance in birds breeding on Finnish mires: the effect of habitat specialization

  J. Kouki, U. Häyrinen

  170–177

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• Nestedness of insular avifaunas: simple summary statistics masking complex species patterns

  D. Simberloff, J-L. Martin

  178–192

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• Annual variation of northern Finnish forest and fen bird assemblages in relation to spatial scale

  R. Virkkala

  193–203

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