Vol. 99 No. 2–3 (2022): Ornis Fennica Volume 99 Issue 2–3

Research articles

• 

  Occurrence of rats and their impacts on colonial waterbirds in a Danish fjord

  Thomas Bregnballe, Peter Sunde, Kevin Kuhlmann Clausen

  37-51

  • pdf
• 

  Tutoring new song elements to male birds in the wild Lessons learnt from playback tests with the collared flycatcher

  Éva Vaskuti, Sándor Zsebők, László Zsolt Garamszegi

  52-59

  • pdf
• 

  Diet shifting of tortoise-eating Golden Eagles (Aquila chrysaetos) in southeastern Bulgaria

  Boyan P. Milchev

  60-70

  • pdf
• 

  Field selection of greylag geese (Anser anser) Implications for management of set-aside fields to alleviate crop damage

  Malin Teräväinen, Johan Elmberg, Carina Tennfors, Olivier Devineau, Karen-Marie Mathisen, Johan Månsson

  71-82

  • pdf
• 

  Factors affecting apparent survival and resighting probability of wintering mallards Anas platyrhynchos A case study from a small town in north-eastern Poland

  Brygida Manikowska-Ślepowrońska, Włodzimierz Meissner

  83-94

  • pdf
• 

  Ultraviolet film reduces bird–glass collision risk

  Ewa Zyśk-Gorczyńska, Michał Żmihorski

  95-103

  • pdf