J. Krogulec

Lack of social hierarchy in wintering white-tailed eagles (Haliaeetus albicilla) when scavenging

M. Kolodziejczyk, J. Kloskowski, J. Krogulec, 2005 .

Illegal killing and taking of birds in Europe outside the Mediterranean: assessing the scope and scale of a complex issue

S. Butchart, J. Paquet, Z. Vermouzek, 2017, Bird Conservation International.

Hematological indicators of habitat quality: Erythrocyte parameters reflect greater parental effort of Red-necked Grebes under ecological trap conditions

Przemysław Grela, J. Kloskowski, J. Krogulec, 2017, The Condor.

Sexing Red-Necked Grebes Podiceps grisegena by Molecular Techniques and Morphology

Przemysław Grela, M. Tchórzewski, J. Kloskowski, 2006 .

Complementary use of natural and artificial wetlands by waterbirds wintering in Doñana, south-west Spain

Marcin Polak, Javier Bustamante, Andy J. Green, 2009 .