Ornis Polonica 2012, 53: 233–248
Breeding biology of the Bearded Reedling Panurus biarmicus at the Łoniewskie Lake in 1987–2009
Janusz Stępniewski
Ornis Polonica 2012, 53: 249–273
Wintering of water birds in urban areas of Poland in 2007–2009
Włodzimierz Meissner, Patryk Rowiński, Lucjan Kleinschmidt, Jacek Antczak, Piotr Wilniewczyc, Jacek Betleja, Roman Maniarski, Renata Afranowicz-Cieślak
Ornis Polonica 2012, 53: 274–282
Breeding population of the Sparrowhawk Accipiter nisus in Łódź at the beginning of 21st century
Tomasz Janiszewski, Maciej Kamiński, Radosław Włodarczyk
Ornis Polonica 2012, 53: 283–292
Factors affecting diet composition of the Ural Owl Strix uralensis at the Foothills of the Central Beskidy Mountains, SE Poland
Marta Kociuba
Ornis Polonica 2012, 53: 293–297
Numbers and distribution of owls Strigiformes in the forests of the Strzyżów Foothills
Grzegorz Pitucha, Andrzej Wojton
Ornis Polonica 2012, 53: 297–300
Nesting of the Wood Pigeon Columba palumbus close to Kestrel Falco tinnunculus
Adam Zbyryt
Ornis Polonica 2012, 53: 300–302
Single polygyny attempt in the Reed Warbler Acrocephalus scirpaceus on the Milicz fish-ponds
Lucyna Hałupka, Hanna Sztwiertnia, Łukasz Tomasik
Ornis Polonica 2012, 53: 303–305
Cow hair as a nest building material for Jackdaws Corvus monedula –the case of pulling hair from a living animal
Michał Polakowski, Monika Broniszewska
Ornis Polonica 2012, 53: 305–308
Second breeding record of the Kentish Plover Charadrius alexandrinus in Poland
Zbigniew Kajzer, Marcin Sołowiej
Ornis Polonica 2012, 53: 309–310
Mystery bird 69: Marsh Warbler Acrocephalus palustris
Jan Lontkowski