Ornis Polonica 2019, 60: 169–180
Variation in habitat use by the Black Grouse Lyrurus tetrix in the Biebrza Valley in different phenological periods
Michał Adamowicz
Ornis Polonica 2019, 60: 181–196
Spring and autumn migrations of corvids Corvidae in the Carpathians
Rafał Bobrek, Tomasz Wilk, Aleksandra Pępkowska-Król
Ornis Polonica 2019, 60: 197–210
Breeding avifauna of the SPA Wkrzańska Forest
Łukasz Ławicki, Sebastian Guentzel, Marcin Sołowiej
Ornis Polonica 2019, 60: 211–220
Numbers of some breeding bird species in the valley of the Gwda river and its tributaries
Przemysław Wylegała
Ornis Polonica 2019, 60: 221–223
Urban breeding colony of the Grey Heron Ardea cinerea in Wrocław
Marcin Przymencki, Klaudia Litwiniak, Damian Celiński
Ornis Polonica 2019, 60: 224–226
Third record of the Melodious Warbler Hippolais polygotta in Poland
Paweł Szymański
Ornis Polonica 2019, 60: 227–233
Numbers of waterbirds on the Bay of Gdańsk between September 2018 and April 2019
Włodzimierz Meissner, Katarzyna Stępniewska, Sabina Kaszak, Andrzej Kośmicki, Adam Janczyszyn, Maciej Kozakiewicz
