Owl diets undergo qualitative changes across the different regions of their area of distribution. During the four winters (from 2014–15 to 2017–18), Long-eared Owls’ pellets were collected at three winterroosts located at the southern part of Pannonian Plain, in the Serbian province of Vojvodina. In 8070 prey items from pellets, we identified 16 mammal and 32 bird species. The Common Vole was the dominant prey species with a proportion in a range from 27.4% to 71.6%. The Muridae family formed a supplementary part of the diet: Mus sp., wood mouse and harvest mouse, during all winters. Birds were also a major supplementary prey during winter 2014–15, comprising 10.6%. A comparison of our results with the diet of Long-eared Owls wintering at the northern Pannonian plain (southwestern Slovakia) indicated an increase the proportion of some species in the southern part. How different land uses in agriculture and environmental conditions may be reflected in the food supply are discussed in relation to the diet composition of Long-eared Owls and an environment whose is richer provides both growing diversity in the diet of these owls and an expansion of their food niche. Our study described the Long-eared Owl as opportunistic predators expanding their food niche in the presence of diversified prey.

猫头鹰的饮食在其分布区域的不同区域发生了质的变化。在四个冬季（2014-15 年至 2017-18 年）期间，在位于塞尔维亚伏伊伏丁那省潘诺尼亚平原南部的三个冬季栖息地收集了长耳猫头鹰的颗粒。在来自颗粒的 8070 个猎物中，我们确定了 16 种哺乳动物和 32 种鸟类。田鼠是占优势的猎物种类，比例在 27.4% 到 71.6% 之间。Muridae 家族形成了饮食的补充部分：Mus sp.、木鼠和收获鼠，在整个冬天。鸟类也是 2014-15 年冬季的主要补充猎物，占 10.6%。将我们的结果与在潘诺尼亚平原北部（斯洛伐克西南部）越冬的长耳猫头鹰的饮食进行比较，表明南部某些物种的比例有所增加。农业和环境条件的不同土地利用如何反映在食物供应中的讨论涉及长耳猫头鹰的饮食组成以及更丰富的环境提供这些猫头鹰饮食的日益多样化和它们的扩展食物利基。我们的研究将长耳猫头鹰描述为机会主义捕食者，在多样化猎物面前扩大它们的食物生态位。农业和环境条件的不同土地利用如何反映在食物供应中的讨论涉及长耳猫头鹰的饮食组成以及更丰富的环境提供这些猫头鹰饮食的日益多样化和它们的扩展食物利基。我们的研究将长耳猫头鹰描述为机会主义捕食者，在多样化猎物面前扩大它们的食物生态位。农业和环境条件的不同土地利用如何反映在食物供应中的讨论涉及长耳猫头鹰的饮食组成以及更丰富的环境提供这些猫头鹰饮食的日益多样化和它们的扩展食物利基。我们的研究将长耳猫头鹰描述为机会主义捕食者，在多样化猎物面前扩大它们的食物生态位。