Vol. 100 No. 4 (2023): Ornis Fennica Volume 100 Issue 4

Research articles

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  Productivity of the Great Egret (Ardea alba) and Grey Heron (A. cinerea) in mixed heronries in Poland and behavioral response of fledglings to a drone

  Adam Zbyryt, Cezary Mitrus, Grzegorz Neubauer

  144-158

  • pdf
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  Consistent delay in recent timing of passerine autumn migration

  Adam Søderdahl, Anders P. Tøttrup

  159-169

  • pdf
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  Conspecific density drives sex-specific spatial wintertime distribution and hoarding behaviour of an avian predator

  Elina Koivisto, Giulia Masoero, Chiara Morosinotto, Eric Le Tortorec, Erkki Korpimäki

  170-187

  • pdf