Variation in body mass and fat reserves of the Sedge Warbler Acrocephalus schoenobaenus on autumn migration in the L'viv province (W Ukraine)
Oksana Zakala, Ihor Shydlovskyy, Przemysław Busse
Anthropogenic or ecological trap: what is causing the population decline of the Lapwing Vanellus vanellus in Western Ukraine?
Ihor Shydlovskyy, Hanna Kuzyo