Ornis Polonica 2021, 62: 259–292
Avifauna of the Barycz Valley: current numbers and temporal trends
Wiesław Lenkiewicz, Beata Orłowska, Tadeusz Stawarczyk, Grzegorz Neubauer, Bartosz Smyk
Ornis Polonica 2021, 62: 293–309
Numbers and distribution of the Northern Lapwing Vanellus vanellus and European Golden Plover Pluvialis apricaria in autumn 2020 in Poland
Włodzimierz Meissner, Dawid Cząstkiewicz, Jacek Antczak, Sebastian Guentzel
Ornis Polonica 2021, 62: 310–338
Rare Birds Panel in Poland – report 2019 for breeding species
Łukasz Ławicki, Szymon Beuch, Tomasz Chodkiewicz, Przemysław Wylegała, Jacek Betleja, Szymon Bzoma, Zdzisław Cenian, Robert Cymbała, Paweł Czechowski, Stanisław Czyż, Piotr Dębowski, Andrzej Dylik, Andrzej Górski, Grzegorz Grygoruk, Wojciech Guzik, Krzysztof Jankowski, Zbigniew Kajzer, Dominik Krupiński, Dorota Łukasik, Łukasz Matyjasiak, Grzegorz Neubauer, Sławomir Sielicki, Bartosz Smyk, Krzysztof Stasiak, Łukasz Wardecki, Marcin Wężyk, Maria Wieloch, Bartłomiej Woźniak, Monika Zielińska, Piotr Zieliński, Arkadiusz Sikora
Ornis Polonica 2021, 62: 339–344
The first breeding record of the Baillon’s Crake Zapornia pusilla in Poland after an absence of more than 160 years
Marek Kołodziejczyk, Romuald Mikusek, Marcin Polak, Jan Jedlikowski
Ornis Polonica 2021, 62: 344–350
Observations of the Greenland White-fronted Goose Anser albifrons flavirostris in Poland and its field identification
Michał Polakowski
Ornis Polonica 2021, 62: 351–352
Beak and skin abnormality in the Rook Corvus frugilegus observed in Poland
Zuzanna Zaradzka
Ornis Polonica 2021, 62: 353–356
Update of the taxonomy of the Polish bird checklist
Tadeusz Stawarczyk
Ornis Polonica 2021, 62: 357–363
Numbers of waterbirds in the Bay of Gdańsk between September 2020 and April 2021
Włodzimierz Meissner, Andrzej Kośmicki, Szymon Bzoma, Sabina Buczyńska
Ornis Polonica 2021, 62: 364–366
Hume R., Still R., Swash A., Harrop H. 2021. Europe’s Birds. An identification guide. Princeton University Press. ISBN: 978-0-691-17765-6
Tadeusz Stawarczyk
