Vol. 96 No. 1 (2019)

Research articles

• Vocal activity of the Central European Boreal Owl population in relation to varying environmental conditions

  Richard Sevcík, Jan Riegert, Jirí Sindelár, Marketa Zarybnicka

  1–12

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• Solitude at periphery: lack of partners limits reproduction of the Black Stork (Ciconia nigra) at the margin of the distribution range

  Annika Konovalov, Rein Nellis, Renno Nellis, Ain Nurmla, Urmas Sellis, Ülo Väli

  13–23

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• Timing and duration of spring staging of the Eurasian Greater White-fronted Goose (Anser albifrons albifrons) in relation to sex, age and progress of migration season

  Michal Polakowski, Lukasz Jankowiak, Krzysztof Stepniewski, Katarzyna Stepniewska, Helmut Kruckenberg, Barwolt S. Ebbinge, Monika Broniszewska, Anna Cichocka

  24–32

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• Does the Common Kingfisher (Alcedo atthis) select the most energetic fish prey?

  Antonio Vilches, Rafael Miranda, Juan Arizaga

  33–40

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