Ornis Fennica 2022:2-3

Ornis Fennica 2-3/2022 contains the following articles: Thomas Bregnballe, Peter Sunde, Kevin Kuhlmann Clausen, Occurrence of rats and their impacts on colonial waterbirds in a Danish fjord; Éva Vaskuti, Sándor Zsebők, László Zsolt Garamszegi, Tutoring new song elements to male birds in the wild; Boyan P. Milchev, Diet shifting of tortoise-eating Golden Eagles (Aquila chrysaetos) in southeastern Bulgaria; Malin Teräväinen, Johan Elmberg, Carina Tennfors, Olivier Devineau, Karen-Marie Mathisen, Johan Månsson, Field selection of greylag geese (Anser anser); Brygida Manikowska-Ślepowrońska, Włodzimierz Meissner, Factors affecting apparent survival and resighting probability of wintering mallards Anas platyrhynchos; Ewa Zyśk-Gorczyńska, Michał Żmihorski, Ultraviolet film reduces bird–glass collision risk.