Ornis Polonica 2020, 61: 1–13
Some breeding species of SPA Bagienna Dolina Narwi in 2011 and 2012, and their population trends
Tomasz Tumiel, Paweł Białomyzy, Grzegorz Grygoruk, Michał Korniluk, Piotr Świętochowski, Marcin Wereszczuk
Ornis Polonica 2020, 61: 14–31
Population estimates of selected breeding birds of the SPA Goleniowska Forest
Łukasz Ławicki, Artur Staszewski, Bartosz Racławski, Michał Barcz, Michał Jasiński, Zbigniew Kajzer, Paweł Stańczak, Sebastian Guentzel
Ornis Polonica 2020, 61: 32–46
Abundance and distribution of woodpeckers Picidae in the Polish Tatra National Park
Marcin Matysek, Jakub Wyka, Bogusław Binkiewicz, Grzegorz Szewczyk, Józef Bobak, Stanisław Wierzbanowski, Włodzimierz Cichocki
Ornis Polonica 2020, 61: 47–56
Distribution and numbers of the Northern Goshawk Accipiter gentilis in the central part of Little Poland province
Damian Wiehle, Jakub Wyka, Marcin Matysek, Piotr Sobas, Bartłomiej Kusal, Łukasz Kajtoch
Ornis Polonica 2020, 61: 57–62
Preliminary results of GPS-tracking of the Honey Buzzard Pernis apivorus in Podlasie (NE Poland) and their implications for monitoring and surveying of the species
Paweł Mirski, Tomasz Tumiel
Ornis Polonica 2020, 61: 62–67
First wintering records of the Whiskered Tern Chlidonias hybrida in Poland on the background of autumn observations of the species
Tomasz Tumiel, Grzegorz Grygoruk, Arkadiusz Sikora
Ornis Polonica 2020, 61: 68–70
Dyrcz A. 2020. Wodniczka. Monografie Przyrodnicze. Wyd. Klubu Przyrodników, Świebodzin. 95 pp. ISBN 978-83-63426-33-0
Lucyna Hałupka
